CINXE.COM
Redirect file
<!doctype html> <html lang="en"> <head> <script type="text/javascript">location.replace('/ep/index.html');</script> <meta http-equiv="refresh" content="0; url=/ep/index.html"/> <meta name="title" property="og:title" content="Redirect file"> <meta name="type" property="og:type" content="website"> <meta name="image" property="og:image" content="https://www.nlm.nih.gov/images/NLMgeneric.jpg"> <meta name="image:alt" property="og:image:alt" content="National Library of Medicine (NLM)"> <meta name="twitter:card" content="summary_large_image"> <meta name="twitter:site" content="@NLM_NIH"> <meta name="twitter:title" content="Redirect file"> <meta name="twitter:image" content="https://www.nlm.nih.gov/images/NLMgeneric.jpg"> <meta name="twitter:image:alt" content ="National Library of Medicine (NLM)"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/> <link rel="preconnect" href="https://fonts.googleapis.com"> <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin> <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@100;300;400;500;700&display=swap" rel="stylesheet"> <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.10/css/all.css" integrity="sha384-+d0P83n9kaQMCwj8F4RJB66tzIwOKmrdb46+porD/OvrJ+37WqIM7UoBtwHO6Nlg" crossorigin="anonymous"> <script src="https://assets.nlm.nih.gov/uswds/js/uswds-init.min.js"></script> <link rel="stylesheet" href="/home_assets/uswds/css/styles.css"> <title>Redirect file</title> <link rel="schema.DC" href="http://purl.org/dc/elements/1.1/" title="The Dublin Core metadata Element Set" /> <meta name="DC.Title" content="Redirect file" /> <meta name="DC.Publisher" content="U.S. National Library of Medicine" /> <meta name="DC.Date.Issued" content="2019-02-05" /> <meta name="DC.Date.Modified" content="2023-12-29" /> <meta name="NLMDC.Date.LastReviewed" content="2019-02-05" /> <meta name="NLM.Contact.Email" content="epinfo@mail.nlm.nih.gov" /> <meta name="DC.Type" content="Other" /> <meta name="NLM.Permanence.Level" content="Permanence Not Guaranteed" /> <meta name="DC.Rights" content="Public Domain" /> <meta name="DC.Language" content="eng" /> <!-- Google Tag Manager --><script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push( {'gtm.start': new Date().getTime(),event:'gtm.js'} );var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-MT6MLL');</script> <!-- End Google Tag Manager --> </head> <body> <!-- TOP NAV --> <a class="usa-skipnav" href="#main">Skip to main content</a> <div class="usa-banner site-banner" aria-label="Official government website"> <div class="usa-accordion"> <header class="usa-banner__header"> <div class="usa-banner__inner"> <div class="grid-col-auto"> <img class="usa-banner__header-flag" src="https://assets.nlm.nih.gov/uswds/img/us_flag_small.png" alt="U.S. flag" /> </div> <div class="grid-col-fill tablet:grid-col-auto"> <p class="usa-banner__header-text"> An official website of the United States government </p> <p class="usa-banner__header-action" aria-hidden="true"> Here鈥檚 how you know </p> </div> <button class="usa-accordion__button usa-banner__button" aria-expanded="false" aria-controls="gov-banner" > <span class="usa-banner__button-text">Here鈥檚 how you know</span> </button> </div> </header> <div class="usa-banner__content usa-accordion__content" id="gov-banner"> <div class="grid-row grid-gap-lg"> <div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="https://assets.nlm.nih.gov/uswds/img/icon-dot-gov.svg" role="img" alt="" aria-hidden="true" /> <div class="usa-media-block__body"> <p> <strong> Official websites use .gov </strong> <br /> A <strong>.gov</strong> website belongs to an official government organization in the United States. </p> </div> </div> <div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="https://assets.nlm.nih.gov/uswds/img/icon-https.svg" role="img" alt="" aria-hidden="true" /> <div class="usa-media-block__body"> <p> <strong> Secure .gov websites use HTTPS </strong> <br /> A <strong>lock</strong> ( <span class="icon-lock" > <svg xmlns="http://www.w3.org/2000/svg" width="52" height="64" viewBox="0 0 52 64" class="usa-banner__lock-image" role="img" aria-labelledby="banner-lock-title-default banner-lock-description-default" focusable="false" > <title id="banner-lock-title-default">Lock</title> <desc id="banner-lock-description-default">A locked padlock</desc> <path fill="#000000" fill-rule="evenodd" d="M26 0c10.493 0 19 8.507 19 19v9h3a4 4 0 0 1 4 4v28a4 4 0 0 1-4 4H4a4 4 0 0 1-4-4V32a4 4 0 0 1 4-4h3v-9C7 8.507 15.507 0 26 0zm0 8c-5.979 0-10.843 4.77-10.996 10.712L15 19v9h22v-9c0-6.075-4.925-11-11-11z" /> </svg > </span> ) or <strong>https://</strong> means you鈥檝e safely connected to the .gov website. Share sensitive information only on official, secure websites. </p> </div> </div> </div> </div> </div> </div> <!-- HEADER --> <header id="siteheader" class="usa-header usa-header--basic"> <div class="usa-nav-container tablet:padding-x-4 mobile-lg:padding-x-2 padding-y-1"> <div class="grid-row padding-y-105"> <div class="grid-col-8 desktop:grid-col-4 tablet-lg:grid-col-4 tablet:grid-col-6"> <a href="https://www.nlm.nih.gov/"> <img src="https://assets.nlm.nih.gov/uswds/img/NLM_White.png" alt="NLM logo" class="logo margin-top-1"> </a> </div> <div class="desktop:grid-col-4 desktop:grid-offset-4 tablet-lg:grid-col-6 tablet-lg:grid-offset-2 tablet:grid-col-6 grid-col-12"> <form class="usa-search desktop:margin-top-2 tablet:margin-top-2 mobile:margin-top-1" role="search" data-gtm-form-interact-id="0" method="get" action="//vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta" target="_self" name="searchForm" id="searchForm2"> <input class="usa-input ui-autocomplete-input" aria-label="Search" type="search" name="query" data-gtm-form-interact-field-id="0" id="search2" placeholder="Search NLM" autocomplete="off"> <input type="hidden" name="v:project" value="nlm-main-website"> <button class="usa-button border border-top border-bottom border-right border-white" role="button" aria-label="Search" type="submit"> <span class="usa-search__submit-text"> <i class="fas fa-search"></i> </span> </button> </form> </div> </div> </div> </header> <div class="bg-secondary insertCOOP"> <div class="usa-nav-container"> <div class="usa-navbar "> <button class="usa-menu-btn">Menu</button> </div> <nav aria-label="Primary navigation" class="usa-nav"> <button class="usa-nav__close"><img src="https://assets.nlm.nih.gov/uswds/img/close.svg" alt="close"></button> <ul class="usa-nav__primary usa-accordion insertNav"> <li class="usa-nav__primary-item desktop-lg:margin-x-5 desktop:margin-x-3 tablet:margin-x-0"> <button type="button" class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="basic-nav-section-one"> <span>Products and Services <i class="fas fa-caret-down margin-left-05"></i> </span> </button> <ul id="basic-nav-section-one" class="usa-nav__submenu bg-secondary" hidden=""> <li class="usa-nav__submenu-item"> <a href="//eresources.nlm.nih.gov/nlm_eresources/"><span>All Products and Services</span></a> </li> <li class="usa-nav__submenu-item"> <a href="//clinicaltrials.gov/"><span>ClinicalTrials.gov</span></a> </li> <li class="usa-nav__submenu-item"> <a href="//collections.nlm.nih.gov/"><span>Digital Collections</span></a> </li> <li class="usa-nav__submenu-item"> <a href="//catalog.nlm.nih.gov"><span>LocatorPlus Catalog</span></a> </li> <li class="usa-nav__submenu-item"> <a href="//meshb.nlm.nih.gov/search"><span>Medical Subject Headings (MeSH)</span></a> </li> <li class="usa-nav__submenu-item"> <a href="//medlineplus.gov/"><span>MedlinePlus</span></a> </li> <li class="usa-nav__submenu-item"> <a href="//pubmed.ncbi.nlm.nih.gov/"><span>PubMed/MEDLINE</span></a> </li> <li class="usa-nav__submenu-item"> <a href="//uts.nlm.nih.gov/uts/"><span>Unified Medical Language System (UMLS)</span></a> </li> </ul> </li> <li class="usa-nav__primary-item desktop-lg:margin-x-5 desktop:margin-x-3 tablet:margin-x-0"> <button type="button" class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="basic-nav-section-two"> <span> Resources for You <i class="fas fa-caret-down margin-left-05"></i></span> </button> <ul id="basic-nav-section-two" class="usa-nav__submenu bg-secondary" hidden=""> <li class="usa-nav__submenu-item"> <a href="/portals/researchers.html"><span>For Researchers</span></a> </li> <li class="usa-nav__submenu-item"> <a href="/portals/publishers.html "><span>For Publishers</span></a> </li> <li class="usa-nav__submenu-item"> <a href="/portals/librarians.html"><span>For Librarians</span></a> </li> <li class="usa-nav__submenu-item"> <a href="/training.html "><span>For Educators/Trainers </span></a> </li> <li class="usa-nav__submenu-item"> <a href="/portals/healthcare.html"><span>For Health care Professionals</span></a> </li> <li class="usa-nav__submenu-item"> <a href="/portals/public.html "><span>For the Public</span></a> </li> </ul> </li> <li class="usa-nav__primary-item desktop-lg:margin-x-5 desktop:margin-x-3 tablet:margin-x-0"> <button type="button" class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="basic-nav-section-three"> <span>Explore NLM <i class="fas fa-caret-down margin-left-05"></i> </span> </button> <ul id="basic-nav-section-three" class="usa-nav__submenu bg-secondary" hidden=""> <li class="usa-nav__submenu-item"> <a href="/about/index.html"><span>About the Library</span></a> </li> <li class="usa-nav__submenu-item"> <a href="/about/visitor.html"><span>Visit the Library</span></a> </li> <li class="usa-nav__submenu-item"> <a href="/hmd/index.html"><span>History of Medicine</span></a> </li> <li class="usa-nav__submenu-item"> <a href="/about/org.html"><span>NLM by Organization</span></a> </li> <li class="usa-nav__submenu-item"> <a href="/news/newsandevents.html"><span>News, Events, and Updates</span></a> </li> </ul> </li> <li class="usa-nav__primary-item desktop-lg:margin-x-5 desktop:margin-x-3 tablet:margin-x-0"> <button type="button" class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="basic-nav-section-four"> <span> Grants and Research <i class="fas fa-caret-down margin-left-05"></i> </span> </button> <ul id="basic-nav-section-four" class="usa-nav__submenu bg-secondary" hidden=""> <li class="usa-nav__submenu-item"> <a href="/ep/index.html"><span>NLM Extramural Programs</span></a> </li> <li class="usa-nav__submenu-item"> <a href="/research/index.html"><span>NLM Intramural Research Program</span></a> </li> <li class="usa-nav__submenu-item"> <a href="https://www.ncbi.nlm.nih.gov/"><span>National Center for Biotechnology Information</span></a> </li> <li class="usa-nav__submenu-item"> <a href="//lhncbc.nlm.nih.gov/"><span>Lister Hill National Center for Biomedical Communications</span></a> </li> </ul> </li> </ul> </nav> </div> </div> <!-- End of TOP NAV --> <!-- Breadcrumbs --> <div class="grid-container"> <nav class="usa-breadcrumb usa-breadcrumb--wrap padding-top-1" aria-label="Breadcrumbs"> <ol class="usa-breadcrumb__list"> <li class="usa-breadcrumb__list-item"><a href="/" class="usa-breadcrumb__link"><span>Home</span></a></li> </ol> </nav> </div> <!-- End Breadcrumbs --> <main id="main"> <div class="grid-container"> <div class="grid-row padding-bottom-5"> <div class="grid-col"> <div class="h1">Redirect file</div> <p>This page is no longer being maintained. You can find a previous version at: <a href="/ep/index.html">/ep/index.html</a>.</p> <ul> <li>There is no guarentee that this redirect page will be maintained.</li> <li>You will be redirected in 10 seconds.</li> </ul> </div> </div> </div> </main> <!-- FOOTER --> <footer class="usa-footer__primary-section padding-top-5 padding-bottom-3 insertfooter"> <div class="grid-container"> <div class="grid-row"> <div class="desktop:grid-col-3 grid-col-6"> <a href="https://www.nlm.nih.gov/socialmedia/index.html"> <p class="text-white">Connect with NLM</p> </a> <ul class="social_media add-list-reset"> <li class="margin-right-05"><a href="https://www.facebook.com/nationallibraryofmedicine"><img class="bg-secondary" src="https://www.nlm.nih.gov/images/facebook.svg" alt="Facebook"></a></li> <li class="margin-right-05"><a title="External link: please review our privacy policy." href="https://www.linkedin.com/company/national-library-of-medicine-nlm/"><img class="bg-secondary" src="//www.nlm.nih.gov/images/linkedin.svg" alt="LinkedIn"></a></li> <li class="margin-right-05"><a title="External link: please review our privacy policy." href="https://twitter.com/NLM_NIH"><img src="//www.nlm.nih.gov/images/twitter.svg" class="img-fluid bg-secondary" alt="Twitter"></a></li> <li class="margin-right-05"><a title="External link: please review our privacy policy." href="https://www.youtube.com/user/NLMNIH"><img src="//www.nlm.nih.gov/images/youtube.svg" class="bg-secondary" alt="You Tube"></a></li> <li class="margin-right-05"><a title="External link: please review our privacy policy." href="https://public.govdelivery.com/accounts/USNLMOCPL/subscriber/new?preferences=true"><img src="//www.nlm.nih.gov/images/mail.svg" class=" bg-secondary" alt="Government Delivery"></a></li> </ul> </div> <div class="desktop:grid-col-3 grid-col-6"> <p class="address_footer text-white"> National Library of Medicine <br> <a href="https://www.google.com/maps/place/8600+Rockville+Pike,+Bethesda,+MD+20894/@38.9959508,-77.101021,17z/data=!3m1!4b1!4m5!3m4!1s0x89b7c95e25765ddb:0x19156f88b27635b8!8m2!3d38.9959508!4d-77.0988323" class="text-white"> 8600 Rockville Pike <br> Bethesda, MD 20894 </a></p> </div> <div class="desktop:grid-col-3 grid-col-6"> <p><a href="/web_policies.html" class="text-white"> Web Policies </a><br> <a href="https://www.nih.gov/institutes-nih/nih-office-director/office-communications-public-liaison/freedom-information-act-office" class="text-white"> FOIA </a><br> <a href="https://www.hhs.gov/vulnerability-disclosure-policy/index.html" class="text-white">HHS Vulnerability Disclosure</a> </p> </div> <div class="desktop:grid-col-3 grid-col-6"> <p><a class="supportLink text-white" href="//support.nlm.nih.gov?from="> NLM Support Center </a> <br> <a href="/accessibility.html" class="text-white"> Accessibility </a><br> <a href="/careers/careers.html" class="text-white"> Careers </a></p> </div> </div> <div class="grid-row"> <div class="grid-col-12"> <p class="text-center text-white"> <a class="text-white" href="//www.nlm.nih.gov/">NLM</a> | <a class="text-white" href="https://www.nih.gov/">NIH</a> | <a class="text-white" href="https://www.hhs.gov/">HHS</a> | <a class="text-white" href="https://www.usa.gov/">USA.gov</a></p> </div> </div> </div> </footer> <script src="//assets.nlm.nih.gov/uswds/js/uswds.min.js"></script> <script src="//assets.nlm.nih.gov/jquery/jquery-latest.min.js"></script> <script src="//assets.nlm.nih.gov/jquery/jquery-migrate-latest.min.js"></script> <script src="/scripts/nlm_autocomplete.js"></script> <script src="/scripts/nlm_uswds.js"></script> <script> $( document ).ready(function() { $( ".supportLink" ).attr("href", "//support.nlm.nih.gov?from=" + window.location.href); } ); </script> </body> </html>