1.0Prisma Investigaciónhttps://www.prisma.org.pe/investigacion/en/admDevhttps://www.prisma.org.pe/investigacion/en/author/admdev/rich600338<blockquote class="wp-embedded-content" data-secret="k2ODbFd1y7"><a href="https://www.prisma.org.pe/investigacion/en/investigador/william-checkley/">William Checkley</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.prisma.org.pe/investigacion/en/investigador/william-checkley/embed/#?secret=k2ODbFd1y7" width="600" height="338" title="“William Checkley” — Prisma Investigación" data-secret="k2ODbFd1y7" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.prisma.org.pe/investigacion/wp-includes/js/wp-embed.min.js /* ]]> */ </script> https://www.prisma.org.pe/investigacion/wp-content/uploads/2019/04/William-Checkley-1.jpg340438William Checkley, MD, PhD is Professor of Medicine in the Division of Pulmonary and Critical Care at the Johns Hopkins School of Medicine and hold joint appointments in International Health and Biostatistics at the Johns Hopkins Bloomberg School of Public Health. His research has focused on observational studies and randomized controlled trials to combat non-communicable