document.write('<link rel="stylesheet" href="https://clicktotweet.com/embed/embed.css" type="text/css" media="all">');
document.write('<div class="tweet-box ctt-box-design-1">');
document.write('  <a href="https://ctt.ec/31oG2">');
document.write('    <p class="ctt-font-original">ReTweet if useful... Cause of oxygenated blood from central venous catheter? https://ctt.ec/31oG2+ @ivteam #ivteam</p>');
document.write('	  <div class="click-to-tweet"><i></i><span class="cta-pr">Click To Tweet</span></div>');
document.write('	</a>');
document.write('</div>');