The National Academies

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://www.nationalacademies.org:80/about/rss.html","20080928232532","https://web.archive.org/","web","/_static/", "1222644332"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <meta http-equiv="pics-label" content="(pics-1.1 "http://www.icra.org/ratingsv02.html" comment "ICRAonline v2.0" l gen true for "http://www.national-academies.org" r (nz 1 vz 1 lz 1 oz 1 cz 1) "http://www.rsac.org/ratingsv01.html" l gen true for "http://www.national-academies.org" r (n 0 s 0 v 0 l 0))"> <meta http-equiv="content-language" content="en"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="Description" content="The nation turns to the National Academies -- National Academy of Sciences, National Academy of Engineering, Institute of Medicine, and National Research Council -- for independent, objective advice on issues that affect people's lives worldwide."> <meta name="Keywords" content="National Academy of Sciences, National Academy of Engineering, Institute of Medicine, National Research Council, National Academies, NAS, NAE, IOM, NRC"> <meta name="Identifier-URL" content="www.nationalacademies.org"> <link href="https://web.archive.org/web/20080928232532cs_/http://www.nationalacademies.org/nav/na_styles6.css" rel="stylesheet" type="text/css"> <meta name="generator" content="Fog Creek CityDesk 2.0.25"/> <meta name="citydesk" content="4FA27437/73"/> <title>The National Academies</title> <script language="JavaScript">  </script> <link rel="alternate" type="application/rss+xml" title="News from the National Academies" href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/onpi/na.xml"> <link rel="alternate" type="application/rss+xml" title="New from the Institute of Medicine" href="https://web.archive.org/web/20080928232532/http://www.iom.edu/Syndication.aspx?feed=IOMAllNew"> <link rel="alternate" type="application/rss+xml" title="New in Earth & Life Studies at the National Academies" href="https://web.archive.org/web/20080928232532/http://dels.nas.edu/dels/rss.xml"> <link rel="alternate" type="application/rss+xml" title="New from the National Academies Press" href="https://web.archive.org/web/20080928232532/http://www.nap.edu/rss/new.rss"> <link rel="alternate" type="application/rss+xml" title="Current Issue of PNAS" href="https://web.archive.org/web/20080928232532/http://www.pnas.org/rss/current.xml"> <link rel="alternate" type="application/rss+xml" title="Recent Issues of PNAS" href="https://web.archive.org/web/20080928232532/http://www.pnas.org/rss/recent.xml"> </head> <body> <table width="100%" border="0" cellspacing="0" cellpadding="0" bgcolor="white"> <tr> <td valign="top">  <table cellspacing="0" cellpadding="0" border="0" width="100%"> <tbody> <tr> <td bgcolor="#000066" align="left" valign="middle" height="56" width="25%"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/"><img src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/includes/tnalogo.jpg" alt="The National Academies: Advisers to the Nation on Science, Engineering, and Medicine" title="The National Academies: Advisers to the Nation on Science, Engineering, and Medicine" border="0" align="bottom" width="350" height="56/"></a> </td><td rowspan="2" width="10%" height="56" bgcolor="#000066">  <a href="#TN" class="invisible" style="font: 3pt verdana">Jump to Top News</a><a href="#SITH" class="invisible" style="font: 3pt verdana">Jump to Science in the Headlines</a> </td> <td align="right" bgcolor="#000066" style="padding: 5px;" height="56" width="65%"> <table cellpadding="0" cellspacing="0" bgcolor="#000066" border="0"> <tbody> <tr><td valign="top" height="48" width="205" style="font-size: 12px"><div align="center">  <form method="get" action="https://web.archive.org/web/20080928232532/http://search.nationalacademies.org/search"> <table> <tr> <td> <input type="text" name="q" size="17" maxlength="255" value=""/> <input type="image" name="sa" value="Search" src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/nav/images/searchbutton2.jpg" alt="Search" align="absmiddle"> <input type="hidden" name="site" value="main_collection"/> <input type="hidden" name="client" value="nax_frontend"/> <input type="hidden" name="proxystylesheet" value="nax_frontend"/> <input type="hidden" name="output" value="xml_no_dtd"/> </td> </tr> </table> </form>  <p><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/mail.html" class="subscribe">Subscribe to our FREE e-newsletter!</a></p> </td> </tr> </tbody> </table> </td> </tr> </tbody> </table> </td> </tr>   <tr> <td valign="top" height="20"> <table width="100%" border="0" cellspacing="1" cellpadding="0" bgcolor="white" align="left" style="padding-bottom: 2px;"> <tbody> <tr> <td bgcolor="#666699" onmouseover="this.style.backgroundColor='#000066';" onmouseout="this.style.background='#666699';" valign="middle" align="center" nowrap width="28%" height="20"><a href="https://web.archive.org/web/20080928232532/http://www.nasonline.org/" class="inst" style="font: 7pt verdana; color: white; text-decoration: none;">NATIONAL ACADEMY OF SCIENCES</a> </td> <td bgcolor="#666699" onmouseover="this.style.backgroundColor='#000066';" onmouseout="this.style.background='#666699';" valign="middle" align="center" nowrap width="28%"><a href="https://web.archive.org/web/20080928232532/http://www.nae.edu/" class="inst" style="font: 7pt verdana; color: white; text-decoration: none;">NATIONAL ACADEMY OF ENGINEERING</a> </td> <td bgcolor="#666699" onmouseover="this.style.backgroundColor='#000066';" onmouseout="this.style.background='#666699';" valign="middle" align="center" nowrap width="19%"><a href="https://web.archive.org/web/20080928232532/http://www.iom.edu/" class="inst" style="font: 7pt verdana; color: white; text-decoration: none;">INSTITUTE OF MEDICINE</a> </td> <td bgcolor="#666699" onmouseover="this.style.backgroundColor='#000066';" onmouseout="this.style.background='#666699';" valign="middle" align="center" nowrap width="25%"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/nrc/" class="inst" style="font: 7pt verdana; color: white; text-decoration: none;">NATIONAL RESEARCH COUNCIL</a> </td> </tr> </tbody> </table> </td> </tr>   <tr> <td style="padding-left: 5px;" valign="middle" height="20"> <table width="100%" border="0" cellspacing="0" cellpadding="0" align="left"> <tbody> <tr> <td valign="top" width="1" height="20" style="font: 8pt verdana, arial, sans-serif; color: #999999; padding-top: 2px; padding-bottom: 2px;" nowrap> </td> <td valign="top" height="20" width="500" style=" padding-top: 2px; padding-bottom: 2px; color: #666666;" nowrap> </td> <td height="20" valign="top" style="padding-bottom: 0px; padding-right: 10px; padding-top: 4px;" align="right" nowrap> <script type="text/javascript" language="JavaScript1.2"> </script> </td> <td valign="top" height="20" width="160" nowrap style="padding-bottom: 3px; padding-left: 3px;" align="right"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/status/" class="leftlink"><img src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/includes/opstatus2.jpg"></a> </td> </tr> </tbody> </table> </td> </tr>  <tr> <td valign="top">  <table width="100%" align="left" border="0" cellpadding="0" cellspacing="0"> <tr>  <td valign="top" width="150" align="left"> <table width="150" border="0" cellspacing="0" cellpadding="0" style="padding-left: 3px;"> <tbody> <tr> <td valign="bottom" align="left"><img alt="Quick Links" src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/nav/images/tab_ql.gif" width="150" height="20" align="top" title="Quick Links"/> </td> </tr>  <tr> <td valign="top"> <table width="150" border="0" cellspacing="0" cellpadding="0"> <tbody> <tr> <td class="leftnav" style="border-top: 1px solid silver;" valign="top"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/about" class="leftlink">About the National Academies</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www8.nationalacademies.org/cp" class="leftlink">Current Projects</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www8.nationalacademies.org/onpinews/default.aspx" class="leftlink">News Office</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/publications/" class="leftlink">Publications</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www7.nationalacademies.org/ocga/" class="leftlink">For Congress</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/memarea" class="leftlink">Members' Site</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www.koshland-science-museum.org/" class="leftlink">Marian Koshland<br>Science Museum</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/giving/" class="leftlink">Giving to the National Academies</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/directories/" class="leftlink">Directories</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/cgi-bin/formfeed.cgi" class="leftlink">Contact Us</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/coi/index.html" class="leftlink">Conflict-of-Interest Policy</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/studycommitteprocess.pdf" class="leftlink">National Academies Study Process</a> </td> </tr> <tr> <td class="leftnav"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/sitemap/" class="leftlink">Site Map</a> </td> </tr> </tbody> </table> </td> </tr> <tr> <td height="5" valign="top">  </td> </tr> <tr> <td height="10" valign="top"> <a href="https://web.archive.org/web/20080928232532/http://www.nas.edu/podcast/" class="leftlink"><img src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/includes/mp3logo_tiny.jpg"></a><a href="https://web.archive.org/web/20080928232532/http://www.nas.edu/podcast/" class="leftlink"> Podcasts</a> </tr></td> <tr> <tr> <td height="10" valign="top"> <a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/about/rss.html" class="leftlink"><img src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/elements/rss.JPG"></a><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/about/rss.html" class="leftlink"> News Feeds</a> </td> </tr> <td height="10" valign="top">  </td> </tr> <tr> <td valign="top" align="left"> <table width="150" border="0" cellspacing="0" cellpadding="0" align="left"> <tbody> <tr> <th class="newhead" align="left"> Popular Searches</th> </tr> <tr> <td class="new"> <a href="https://web.archive.org/web/20080928232532/http://nationalacademies.org/evolution" class="leftlink">Evolution</a> </td> </tr> <tr> <td class="new" style="border-bottom: 1px solid silver;"> <a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/stemcells" class="leftlink">Stem Cells</a> </td> </tr> </tbody></table></td> </tr> <tr> <td height="10" valign="top">  </td> </tr> <tr> <td valign="top" align="left">  <table width="150" border="0" cellspacing="0" cellpadding="0" align="left"> <tbody> <tr> <th class="newhead" align="left"> Career Links </th> </tr> <tr> <td class="new"><a href="https://web.archive.org/web/20080928232532/http://www7.nationalacademies.org/careers" class="leftlink">Employment</a> </td> </tr> <tr> <td class="new" style="border-bottom: 1px solid silver;"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/opportunities" class="leftlink">Fellowships & Postdoc</a> </td> </tr> <tr> <td class="new" style="border-bottom: 1px solid silver;"><a href="https://web.archive.org/web/20080928232532/http://nationalacademies.org/careerguides.html" class="leftlink">Career Guides</a> </td> </tr> <tr> <td class="new" style="border-bottom: 1px solid silver;"><a href="https://web.archive.org/web/20080928232532/http://www7.nationalacademies.org/retirees/index.html" class="leftlink">For Retirees</a> </td> </tr> </tbody> </table> </td> </tr>  <tr> <td height="10" valign="top">  </td> </tr> <tr> <td valign="top" align="left"> <table width="150" border="0" cellspacing="0" cellpadding="0" align="left"> <tbody> <tr> <th class="newhead" align="left"> Major Divisions </th> </tr> <tr> <td class="new"><a href="https://web.archive.org/web/20080928232532/http://www7.nationalacademies.org/dbasse/" class="leftlink">Division of Behavioral<br>and Social Sciences<br>and Education</a> </td> </tr> <tr> <td class="new" style="border-bottom: 1px solid silver;"><a href="https://web.archive.org/web/20080928232532/http://dels.nas.edu/" class="leftlink">Division on Earth<br>and Life Studies</a> </td> </tr> <tr> <td class="new" style="border-bottom: 1px solid silver;"><a href="https://web.archive.org/web/20080928232532/http://www7.nationalacademies.org/deps/" class="leftlink">Division on Engineering<br>and Physical Sciences</a> </td> </tr> <tr> <td class="new" style="border-bottom: 1px solid silver;"><a href="https://web.archive.org/web/20080928232532/http://www.iom.edu/" class="leftlink">Institute of Medicine</a> </td> </tr> <tr> <td class="new" style="border-bottom: 1px solid silver;"><a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/gateway/pga/" class="leftlink">Policy and Global<br>Affairs Division</a> </td> </tr> <tr> <td class="new" style="border-bottom: 1px solid silver;"><a href="https://web.archive.org/web/20080928232532/http://www.trb.org/" class="leftlink">Transportation<br>Research Board</a> </td> </tr> </tbody> </table> </td> </tr> </tbody></table> </td>   <td valign="top" style="padding-left: 5px; padding-right: 5px;" align="left" width="100%"> <img height="20" alt="Topics" src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/morenews/includes/newsofficetab.gif" width="182" align="top"/> <table border="0" cellspacing="0" cellpadding="20" width="100%"> <tbody><tr> <td valign="top" width="50%" style="border-top: 1px solid silver; border-bottom: 1px solid silver; border-left: 1px solid silver; border-right: 1px solid silver;">  <table cellspacing="0" cellpadding="5" width="100%" border="0"> <tbody> <tr> <td valign="top" width="75%" rowspan="2"> <p style="PADDING-LEFT: 5px; FONT-WEIGHT: bold; FONT-SIZE: larger; COLOR: #333333; FONT-FAMILY: Verdana, Arial, Helvetica, sans-serif">National Academies’ RSS News Feeds</p> <p class="blurb" style="MARGIN-LEFT: 15px"><a href="https://web.archive.org/web/20080928232532/http://nationalacademies.org/onpi/na.xml"><img alt="RSS Icon" src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/elements/rss.JPG"/></a>  <a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/onpi/na.xml">News from the National Academies</a></p> <p class="blurb" style="MARGIN-LEFT: 15px"><a href="https://web.archive.org/web/20080928232532/http://www.iom.edu/Syndication.aspx?feed=IOMAllNew"><img alt="RSS Icon" src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/elements/rss.JPG"/></a>  <a href="https://web.archive.org/web/20080928232532/http://www.iom.edu/Syndication.aspx?feed=IOMAllNew">News from the Institute of Medicine</a></p> <p class="blurb" style="MARGIN-LEFT: 15px"><a href="https://web.archive.org/web/20080928232532/http://dels.nas.edu/dels/rss.xml"><img alt="RSS Icon" src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/elements/rss.JPG"/></a>  <a href="https://web.archive.org/web/20080928232532/http://dels.nas.edu/dels/rss.xml">New in Earth & Life Studies at the National Academies</a></p> <p class="blurb" style="MARGIN-LEFT: 15px"><a href="https://web.archive.org/web/20080928232532/http://www.nap.edu/rss/new.xml"><img alt="RSS Icon" src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/elements/rss.JPG"/></a>  <a href="https://web.archive.org/web/20080928232532/http://www.nap.edu/rss/new.xml">New from the National Academies Press</a></p> <p class="blurb" style="MARGIN-LEFT: 15px"><a href="https://web.archive.org/web/20080928232532/http://www.pnas.org/rss/current.xml"><img alt="RSS Icon" src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/elements/rss.JPG"/></a>  <a href="https://web.archive.org/web/20080928232532/http://www.pnas.org/rss/current.xml"><i>PNAS</i> -- Current Issue</a></p> <p class="blurb" style="MARGIN-LEFT: 15px"><a href="https://web.archive.org/web/20080928232532/http://www.pnas.org/rss/recent.xml"><img alt="RSS Icon" src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/elements/rss.JPG"/></a>  <a href="https://web.archive.org/web/20080928232532/http://www.pnas.org/rss/recent.xml"><i>PNAS</i> -- Recent Issues</a></p> <br/> <p class="blurb"><a href="#section1">What is RSS?</a><br/> <a href="#section2">What material from the National Academies is available by RSS?</a><br/> <a href="#section3">How do I use RSS?</a><br/> <a href="#section4">How do I subscribe to the National Academies news feed?</a><br/></p> <br/> <a name="section1"></a><p class="blurb"><strong>What is RSS?</strong><br/>RSS stands for Really Simple Syndication and is used to automatically send news clips to users’ computers once they download the RSS feed. This means that whenever you access the feed, you will have the most recent news from the National Academies.</p> <br/> <a name="section2"></a><p class="blurb"><strong>What material from the National Academies is available by RSS?</strong><br/> A growing collection of content from the National Academies provides daily access to news releases, publication announcements, research updates, and public statements. The Office of News and Public Information, Institute of Medicine, Division on Earth and Life Studies, National Academies Press, and Proceedings from the National Academy of Sciences all host RSS feeds.</p> </br> <a name="section3"></a><p class="blurb"><strong>How do I use RSS?</strong><br/> RSS feeds -- like the National Academies' RSS feeds -- can be read by internet browsers or "news reader" programs. Both Microsoft’s Internet Explorer 7.0 and Mozilla’s Firefox 2.0 support RSS feeds without downloading special software (see below for instructions). News reader programs are available for a range of computer platforms, many at low or no cost. To find an RSS feed reader, type "RSS reader" into an Internet search engine.</p><br/> <a name="section4"></a><p class="blurb"><strong>How do I subscribe to the National Academies news feed?</strong> <ul style="font-size: 10pt; font-family=verdana, arial, sans-serif"><li>For <a href="https://web.archive.org/web/20080928232532/http://www.microsoft.com/windows/ie/downloads/default.mspx">Microsoft's Internet Explorer 7.x</a>: <ol style="font-size: 10pt; font-family=verdana, arial, sans-serif"> <li>While on this page, in your browser's menu toolbar, find the RSS feed icon <img src="/web/20080928232532im_/http://www.nationalacademies.org/elements/rssbox.jpg"/> and click on the arrow immediately to its right</li> <li>Select which RSS feed you are interested in</li> <li>On the new page that displays, find the link for "Subscribe to this feed", and click it</li> <li>A window will pop up that says "Subscribe to this Feed". Don't worry about anything in this window, just click "Subscribe"</li> <li>A new page will open that says you've successfully subscribed, to view your subscribed feeds, click the Favorites Center button (the single star icon on the left side of the toolbar), and then click Feeds.</li> </ol> <br/> <li>For other programs:</li> <ol> <li>At the top of this page, right click on the feed that you want to subscribe to and select "copy link" (depending on your browser, it may say "copy link location," "copy shortcut," or something else)</li> <li>Open your desired feed reading program</li> <li>Select "Add Feed" (might be called something a little different depending on your program) in the "Edit" or "Tools" (or possibly "File") menu and paste the copied link into the "Feed URL" or "Feed Location" box</li></ol> </ul> <br/> <br/> <br/> <br/> </td> </tr> <td style="VERTICAL-ALIGN: top; BORDER-LEFT: silver 2px solid"> <p class="blurb" style="MARGIN-TOP: 10px; MARGIN-BOTTOM: 8px; MARGIN-LEFT: 5px"><strong>Learn more:</strong></p> <p class="small" style="MARGIN-LEFT: 5px"><a href="https://web.archive.org/web/20080928232532/http://blogs.law.harvard.edu/tech/rssVersionHistory"><strong>History of RSS</strong></a></p> <p class="small" style="MARGIN-LEFT: 5px">RSS began in 1997 as a language called "scriptingNews." It was renamed "RSS" by Netscape in 1999, which used it for its my.netscape.com site. The current version, RSS 2.0, is published by Berkman Center for Internet & Society at Harvard Law School under a <a href="https://web.archive.org/web/20080928232532/http://www.creativecommons.org/">Creative Commons</a> Attribution/Share Alike license. </p> <p class="small" style="MARGIN-LEFT: 5px"> <a href="https://web.archive.org/web/20080928232532/http://www.w3.org/XML/"><strong>XML</strong></a> </p> <p class="small" style="MARGIN-LEFT: 5px">Extensible Markup Language (XML) is the simple, very flexible programming language that gave rise to RSS. XML was originally designed to meet the challenges of large-scale electronic publishing.</p> </td> </tr> </tbody> </table>  </td> </tr> </tbody></table> </td> <tr><td height="10" colspan="3"></td></tr>  <tr> <td valign="absmiddle" align="center" bgcolor="#666699" colspan="3" height="20"> <a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/about/rss.html"><img src="https://web.archive.org/web/20080928232532im_/http://www.nationalacademies.org/elements/xml.gif" alt="RSS News Feed" width="36" height="14" align="absbottom"></a> | <a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/subscribe.html" class="bottomlinks">Subscribe to e-newsletters</a> | <a href="https://web.archive.org/web/20080928232532/http://www.nationalacademies.org/cgi-bin/formfeed.cgi" class="bottomlinks">Feedback</a> | <a href="#top" class="bottomlinks">Back to Top</a> </td> </tr> <tr> <td colspan="3" valign="top" align="center"> <div class="copyright"><a href="https://web.archive.org/web/20080928232532/http://www.national-academies.org/legal/" class="copyright">Copyright © 2008. National Academy of Sciences. All rights reserved. 500 Fifth St. N.W., Washington, D.C. 20001.</a> <br> <a href="https://web.archive.org/web/20080928232532/http://www.national-academies.org/legal/" class="copyright">Terms of Use and Privacy Statement</a> </div> </td> </tr> </tbody></table> </tbody></table> </body></html>

CINXE.COM

The National Academies