CINXE.COM

Just a moment...

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "www.journals.uchicago.edu",cType: 'managed',cRay: '92c1061dd8464118',cH: 'RuhUK2QeGSyL5uOXAmKI5iP2U7mH.acUGH.neGYTWDc-1743939767-1.2.1.1-3ivFFy5FMzU48jrXyJ0tsLntSLzMEHTdTdOKLREKYjBt3zGyyN013Xpq5luetJba',cUPMDTk: "\/doi\/10.1086\/603287?__cf_chl_tk=qcpXu4TH5zh1sNGhwjBrr6_VquifWjX1hgIFm4jdnRM-1743939767-1.0.1.1-nDJgRVFyy_DhuQtoRbRa86TBMS8FzaJw.0ambmuJya8",cFPWv: 'g',cITimeS: '1743939767',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/doi\/10.1086\/603287?__cf_chl_f_tk=qcpXu4TH5zh1sNGhwjBrr6_VquifWjX1hgIFm4jdnRM-1743939767-1.0.1.1-nDJgRVFyy_DhuQtoRbRa86TBMS8FzaJw.0ambmuJya8",md: "p97NxjeXfJqe7O8D9bi7_BOo3BFmtsyjt16og7Yv2F8-1743939767-1.2.1.1-pJacqMBSPviGcQrppXI6LoXhRPhz8fWNzR8cEfZnnXGlGafx0ITJnXf3K0BQWYp6WzYs4OV8i41MZ08UF.c_E.MU_Cwak9ToRqDpwP0_zELh9ppxwhnz9abFK5owmhC4a5sTcjG2gIJTjLOH_q7ZBYeGbI22xHgZW1xjIIbeGzrq9bzrwRhpyqZjW9pBkDOiIp1rRaXeLrbWBwwtdCqO5ojL1H4NwDfnDt5Bwj_Ju3kQ1oRQdkWa5fC8sAT646WDqvmzQkvgm2bvHyJQcHNC0xYaVwS2Tw1PNJ9hmC45bH6jh10z2op8Fg2uHMYPN1yYk_3DAGE4UEqk9WdKwYKbmhJRK9rNAZvRK46siehoeIYVTn.qqClbdKe57XJy2RQinpSt4n51sC_tM6ngsxS4nNwEBvSwoU0YSiSxWt1ZrLLVoo6GmIcGlDmq_yiMDjCy7QwOAAd951juKND5i8vKIV0twEgVMU6UK2FKDOWt.1_QGTFSEuXbD9MUl8__1DA_4zcL.pRHB85m9CKfaLE_OE0MLPVtdXt78oev8i.MwoyCkSrbk4rKzlR3xfahFG57TBuWQJHeTi2S1lQ5fg3o6c.KqHyrf3mcnYieix.psxqvS78VVvqKh8XI0VS.gQ09XPh9cDU6CgmwCkkkaKzXS3JJ7XDEmNtcfue.JQFWbmsEmuza8R1k8NAPnIifdXKVfS7wsS04iwAB6fs8kc24IKnb1zDS_k8XIG0Iy0rRXlosH2LoZ90_XHdLuLvfhU2WN0r3POjS_a2ic.tBo0yjyi6Q.aMdvIPu3EpMhJcHNt9C.AHHv5JzUbAmhq_sD0MA1PhK.9w_QoeAIdjmteL1ydeOE5jYeWc3qr6od4sA5VYqQiNd4WLqBSzgu.BM7dF8qzxbUlhRmV7MRZzdkzqR9yshvpIKaKfHswrRz0ojrCwN1i9iIq7d3B8tmiWdXqY2qMVju_wMfhCja2.bJFApoHi0R3HSpZWa9akrMp.A5RbI64ANXQzd6zo2_x5nkOBS4cZACiTIsv0pKtfORgqgvhnvvzVIpqUMmW7ubZpDolBLuJTSh32xWMK3IwuJAXuo_.xWw14jpzFLxAGQ6Mcs8zZo_sGzeromRLs_ZzFQoLcvqdavxfOd34o4fTy66kidVIp8JKEdQJg2UulALilWtFwJtGCUl_tA3bZlcmmIyRonHn6.nSTCWRf2ahcnSlCsM_rPkSjzaxhtiyiQa6cfIhQhO2bc67.1AoMWpiOCALcCzwMELumP3uTK85I2Mkbn",mdrd: "pRV9xhf99VbNPKIrTVpqbBP0UBp_oyWc.M5hyL5c0vo-1743939767-1.2.1.1-HLGwbRBfnl8U_n6rD1gcZd1flrjWZDx55Nbqqyg1FqkOwjUhdiA9XPHJjSCb_hr58EreDbgbgG3DZ5ZQMLzegWM9srLMnZJlJFqo_PI5GyrwLPN22aWrQaDXZnYUZLfEAdkoGmQZTuabJAbGykP.dFclk3.PpRK5XMD0hdMVRgSj0aDWmkJ1oYdcmts8oZboXRV5H_MyWRzk_tGoFRQcOxKPZ2p8NCdtQtveBxQl3e8cA5PwlCELd.wvYtCnbar6EYXM_hIW40fgrXQbwVzaXPoXyPaLt1c36DLcQH79klaTe3ILXCL98bYChj31Swa._zcOxJ5sPrJab0QCSsT9rUoedYU4.kq11QZ66KILXGgjeoVhfMRqxqEtEgC5XCvT.ZY0Q9H3geHNDsaOBKrc1HaJ2dbwxEbbEZb02yrnuqE9LD5QT1tPkjrhKWO_Lg9tOnMtJ54YAZJv1XcBzTWt5eGDo9KCObmolcEUgN5hog4ZbOT0HTgJP.uE56uGhu0YisJetIcsW0QUezGUHpjMClxFu8mUReS5_MtZTOqftSt3Y4141nX7sXAPId3.Oi_OqrhoLMopiY6CtLpFHddIhNYJFQTte9Xi2fUq0SZPISumxnYgQj52eN8UZefXf_7SslfwQRPo_o6xm4ZS3BYLXnQ51KCN8znKrp8uglndcdm8Mh4RGj9MdiySnsueyEYgH.lHjBLQLv86X5xihGT4PeXNMztJY3t4ktOWeTq_.X2qvK1wpYEEqKGpQwfviJ26UmTtL9QY2sVCmXnJZ3adb8OQG4ZTyW6C1_DP7SNsiuAeOld2JgWY0E6ErlOFJOZtEDQR7BAMM4q4CCvVUYtEB3CL9PJ4y4fDrOZ9R8ZGX9Iu9sTuXHl_tYOu.nS_Xz0u8NHmuR.CwnwulpIT_MMaaR7HqyhbeXjRqbzKDcsBOxwYrLEVscmW9igd9zZB0eic_wyTS6unCcYy6kOcJF4epJ3CyRtRWHS6UXSHK1q2Li1zWBzmtMhB6GxKzN0OXS6A3_7wkH2N2yabWL_3NwBCZS61TgXX08nATVolzpvRPBGEc9PMrh9EYVbKSAyPFVsoaX__a45EBBKPlNCnxCt._GGeE5zts0pDgg0ongm78Zd94mMa7x6Ej.kldEDBpnKw8IjbeoQb2mL8xMPeXRjtrbiZLji7ZrOJN6h_rSyvOyiZtvlVnMtlM5w6.HN00guVIk0HX8UnopnAYkH.Hd9iCMPGzZ4z2UDzcQ2Ju2qC1iiZGlm2rwsQVxrtR20lHOO7hWf54OTsMrDrVOm9f9c9ikOomHB4qoyGAhIl1kO6a8v4_tdDGpHxAeLq7Y07JofxHEqZw2b8I6ViA0IyZKzWvEDAU0kK1YRuagjTX7xwoOLHkygjXrvyVb5yUeKMAuJbB4zDVs7SIGe5q8hJoNo73mXqFC8Ko2ySTI8dTAt0S8JYdjsmhgNt6geILe_FlOHjRwH1d_s1WVMZ2NFKASms3.8iIrY62ueyhb1YwvSYYKISf57.R35_C2BN1aj_0oys9NFdBRSaymygvj.jmXqhp57yJjrAsZAxaYlJiI0znam9nFCqiWqVtHOpnebTVhK6BccsIrvmD7lZyUH4vR8ceLFM7LaKrCxTWz3O9xFdgPDrxqWP8sPuie66X7Bj4cPVB9.i8uKTIqIlt1NAn74r91SXVrdoZJqw65GzRGPc6hK7LXTn6fUWObfwd1tVX7u6xjHkEjLUVwHMQKKHnAUJiRfR4aeVmFNoc3xnNxLoSrKvbK7hsNpSH4t2Uoa4GIsCWE8ysS_7ES3krnJWakt6.bXitbr.nhCPWz4j3ZNJYVAEzjjvm60pjpPaQ9QRHtzd_K9qIFLv1hssr3ZGNXRgR5Z7_hOpSGvHO4qmWG8JUs5PitDiC8LjhKXlf96x5HkwUPmIN1Y1_kGba.CFIsZddeRYJQ51qJl4tvXt7991I94tY9YoC.GB7SFesV3YVRMOi7_WvfuK9N9fTt6ATzbwQD5ZAdgE72EHiMsnKIbdHpgipqhfpx7Q1cwor.FsS2uel63kZTj7m1._JDTavdeo2DX.V3NCa.vf1.g9HmwE5Dc"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=92c1061dd8464118';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/doi\/10.1086\/603287?__cf_chl_rt_tk=qcpXu4TH5zh1sNGhwjBrr6_VquifWjX1hgIFm4jdnRM-1743939767-1.0.1.1-nDJgRVFyy_DhuQtoRbRa86TBMS8FzaJw.0ambmuJya8" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>