{"version":"1.0","provider_name":"Learn with OPEN","provider_url":"https:\/\/learnwithopen.org\/ka\/","author_name":"Allen Grakasian","author_url":"https:\/\/learnwithopen.org\/ka\/author\/allen\/","title":"Marshall's Syndrome - Learn with OPEN","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"n7YjGept9S\"><a href=\"https:\/\/learnwithopen.org\/ka\/newsletter\/marshalls-syndrome\/\">Marshall&#8217;s Syndrome<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/learnwithopen.org\/ka\/newsletter\/marshalls-syndrome\/embed\/#?secret=n7YjGept9S\" width=\"600\" height=\"338\" title=\"&#8220;Marshall&#8217;s Syndrome&#8221; &#8212; Learn with OPEN\" data-secret=\"n7YjGept9S\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!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);\n\/\/# sourceURL=https:\/\/learnwithopen.org\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/learnwithopen.org\/wp-content\/uploads\/2025\/02\/mother-checking-fever-her-daughter-bedroom-3-scaled.jpg","thumbnail_width":2560,"thumbnail_height":1707,"description":"For the first time in the international literature, 12 cases of the disease were described by the American doctor Gary Marshall and co-authors in 1987. Currently, it is considered the most common disease of the group of periodic fevers. Many studies have been conducted to identify the genetic basis but have not yet identified a single clear mutation (such as in case of Familial Mediterranean fever) but have confirmed some genetic similarities with Beh\u00e7et's disease and recurrent aphthous ulcers."}