<br /> Learn the facts about atrial fibrillation to be aware of this serious yet treatable condition. Manage your risks to avoid complications.<br /> <br /> <style> .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } .sfContentBlock iframe { min-height: 0; } </style> <div class="embed-container"><iframe src="https://www.youtube.com/embed/GHfby0A3r7M?rel=0&amp;showinfo=0" frameborder="0"></iframe></div>
