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: '923bd04a9d2581ad',cH: 'XeflDLUMckt42M7xB_X5cqbC3Joeo3ANm.Ic1SnXuLY-1742542957-1.2.1.1-wjREK46iuIw1CWRp8wUw1H3W8bX4uH81dxg194G4fi1JGDwA2bUmSuBXkXetXeh1',cUPMDTk: "\/doi\/10.1086\/467242?__cf_chl_tk=47o7IeYR5BL_y7rQmQQrThsTIDwTtvAgzRjpa_7r73c-1742542957-1.0.1.1-JTUpPMlFBv06JvMGyDSD.mKNIIr0WNTDLroZA_y87sA",cFPWv: 'b',cITimeS: '1742542957',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/doi\/10.1086\/467242?__cf_chl_f_tk=47o7IeYR5BL_y7rQmQQrThsTIDwTtvAgzRjpa_7r73c-1742542957-1.0.1.1-JTUpPMlFBv06JvMGyDSD.mKNIIr0WNTDLroZA_y87sA",md: "vArXMo_TDYrW4xfCyu8h5_q.uv9WPKDx7wZ9Z1Gxudk-1742542957-1.2.1.1-CH3SFX9XecTtS3t.RkzcLxC8DUzZP8SJYngVzqTPSb6ILvMkywG396rWTAQdG_iive5sO17SbuXHnq4tXZtliwJPMB1MfT8MGQxmpZ6JZoON9QPbhvYBAh.3F6ap03H4xw1GyRjU6hbXiqqI.JsZhTD8D09H3ZdGozs7gsPWNx4.Z6K88PidMUW73v4i29j3hIWoTWJ9wCJPS2SRtxXLsT2zPO4FKM2rUcdHXrb4_d2s8e6dzl13o3dnjmWS15VZKkXSxuYaDTZxBDi6OsUk9mxswB4OLQ4ETLYybsiRy.7SWINsuSvrvrB1XEQ2rhGQzyh5hkBqmpBk0AfKlRTrWsxw4tejHDpuchQtuQFWhIU4Iy_jb3ChcQ5_JqSfAv.YJsVACFdjfxSWrfWG8tdbXSgxg4yPtSsSauE_QOdm8sITtRj0Ahpc_dwpm4K93O0l_va9mL26iSjYeGUPOF.jI8O_tjAP.JunxSJ7YuzP9lpxfVSRF9cuaPNd5z11FZfURiJ0XD1T.Tjw4S8f3gCjL9Qm0KLiJem7o72yfbshY5R2s3UPkyvIegcNl0A_nadFFRbXml.oMJhJyn8VyPet7wlakpjr0LQm.K5Db54wITk9PRIh.aDMqAC11.jnhPzbZPtj390Tuz0aRT3Vvu8.mDlNzhslr364VwIG_LIvnbGS73uUv_agqJrUHRkdDcNPyFhHwiksu0TBcq1YROonJN3hPKhvoJnxPANLssooDerqMa4zhSiEocE3z8ghGJLovTRwYHkFTxTaFnXziumqwdrJgw6GnBiEe1JC24tSUy95xDTzAdm76yYKG1OnZ6uGAkw0yOEzJcgyxBEXyhTyBPeof6DRI.zDhNDmeGsi_gFn4WSYBy1Th2TbrnJHr.eoddy0bIbpOVDbF17jZU8in3v1.h0JEA5CLvRpxbgfP59_KxNK_AobkN2Q2ri9v.mqL3e49x14DVWmDChk6mQwwJiC5oHAWXaRjokuGmRhxzzD6xsAtr0swEBRrDtTovRfQMHAQM1ja0dbts0F8.8Cn7MZ.SmsvBd6su51eb.DrVeTu_3syEvbyLVM_fzjg9DZ4j5dldVPxGyyJ1qe5JTBlraqTJ8NrXlFEQVrY3LpnVrpkJBJiizdOfJwukZFqnhUoiPm5x15cLNZj0DIGnc3dSQqbZG_1LOINEddU3Zs56kB05x_hhh7NBoOgwsgUZRFBpNqzyVHNQ9rb_hX3qJHZ.C3zs085eZGPNVct4NBvltjlqq6gaSZ_87OYZNY_lOV",mdrd: "8UWCA3ZU5tesDs9iyXrgEW7E1bNalGp4u4xirzwAzb4-1742542957-1.2.1.1-Z6.izP.neN90tNKah1nixtaIAvQrUFuqKGM3NQccQYX0LuNf._c8KmDvXCt.gW6u1ltr0G7zG8oA1z4M0F5xQJjcGcA4zWDakfyVnZJzylKURA_5GeRfQmshyDMYVzDMw_NK53l8QnpQD0wQnQrBzaWLRDeqHIFmyxwYDYaHSi5_X.onb9Mh6cIMsyi48nLQhjqu8DsO0TuVgO6xJ8WxZmy0lRsYq2EDMM4RrlSEK1mnOlCz4NKVD6SXKC0yjwb_xBKrDF_Tj2VibF55qE277wDC4wKm.LoLOkyFUwJudOCrAhTU4ECGRJXtjJuUltgsjLQfgXZtyHKffjhQ8kaSO_j2kEra5rJ5N4R.jrWU1npWXGfzDO88V3gAF60B6eizcfYl1g72IomFPzbSz54y6OiXgT6PYUQecNz5E8NoJzuxkhGlTBpN.7ie3FpLX30v1xNvluUbDEIjefnmmCFVh61W3eRfFlI3H6t1uAg5GejczNi5.hLHXup29rLkistGJpAVOBq.nh_0htTA_G4FYv1jB1HRnGBxSmz8fAnifvCjtUrZ_JmrRng5dL9sPvLy8rj05leEdrWRqAdTIfCpK3lS0azaGZXcZLzZDGhDD6VEU9STOrW2hGoD9C_bDhWkZfn6y87yaKjv1Ji7Vtn2vRtLY3NYI0a2TmUTn2EV2kUB3wcVTavHmJoYxd1l86BvG5Q.VdVYV_YEIZm541F9N24G.CS5cxs9Idj_iImD5cQzdI2IIb0wy_KJ3mywsW3B.A41O9cB1wea3boA_J4q.ULUd2n7o2bh9scZ2XFKN4.MlRT8dvygD8lr1sUjo3j8.zP1vaDs118dSmNAcdhafq__WQsj..jncnX_1q5V7fWX1kNhhZBe3hl4Xd5dDRtfmYjc86vdzJY6ZzC_.7NuxBmJVdyig5yimN3qBFu1BfDBUwJj_JSXwmpdrgTZNtKutsYD1kguknPHii3my.rzPHC3eiADHeX_b5uouZIlQ48Bi.P9OUvOzOoit9OW29ptupY3NlWWZ8oCf.TAtjCXSLxGaPnMX9nw70ermz7IwPPGEkh9hyWJpLV.7xeNdwUUOLwzliaEwQ0c9ecBYxIMmyJ5LBTfWtPRbBdlelW142s5NefU6JQ4kyukzhAH9cG.gCazvmQRQNDndZ_ozQI.sIdGP08JeBIhp9aAsvRApRlJEhKiOT1QZC5DzQgSE18Ww_lICl6VMoqcdQbe50jsHbAQUK0FIb7XZfWWW9uDsmQfwjDue2M3FCO3hbJ43pzOQ_D5X2JgQQ4jM8DFOOZVf8OhG6ApQG.w3pSJvkPKpHnvXvsSqDrU5611BL25Tf1KyWjD6cyUN0hEZ8v5jUfyEDS19.8L8mzv3NjRI3X.03Jers.ryG8K.h9RSKHhsqE807r09ngFH_KturUWVn2xguxobTEeKjfO5bbDOTuQLP0T6Gd7LCGyxXIvMP0tuQUMobwixD72IP.SNFBigVv4eXSmGQK2k3P6r7O0g.N2ZRHJAKimDq8GttMgkz.gslHqlmnMGcxWtmLbvduPogT9AKo15lisegtM4SkaGLJhqCa4GIkeoooN3mNv2M.3QEVkPek.oielznvtzZw6F.eeAZuD_QRI.MczvAk01yutyNHGSGwCdgWjtdrOVG6p7S8.vGDxuU14VCwx4Nzg3.QYaepDCpj9rPJQ5RV2irHYUTry97GNcTsIJqn80H7SKt.G795GUIZkTWycLdEZKAVb0ngDmXaAxg0ZHlvxhC7DDoguU7kk9O7gUa6.ZabHTwm5GYAiQ_o0L5IAAdANGIxDxwjeSioxYkGd_GQaFrDlneHuAlEiU78qgqzdWEeVlxD2jC9YW5ICcUvxcY3PQcOEeySHWb639Vg3C7ysM9E_Aq4gqqm8NtZgFxg3FDBEmmd_WamVuTBt0g7I2ZmhG_AR4qeB.431UYcCc0MrxPt2BP.eY4NtkiyYuwZgEAc_qYgw7j4QxLrMAOA2UybFDTbTLK8ANfhLhN097y4_sUycSJRQssB2bo0vf1xZA1I70cuexYvf8XREWWQq0yUL8ebtWNuA9WtFMH3INl7bW38SMwAzYY0CDVUxNS0sD7KPygfm"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=923bd04a9d2581ad';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\/467242?__cf_chl_rt_tk=47o7IeYR5BL_y7rQmQQrThsTIDwTtvAgzRjpa_7r73c-1742542957-1.0.1.1-JTUpPMlFBv06JvMGyDSD.mKNIIr0WNTDLroZA_y87sA" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>