公式タイトルと情報はIP Exchange PlusとPremiumのユーザーのみが利用可能です。
特許 係属中 Atrial fibrillation (AF or A-fib) is the most common abnormal heart rhythm. It may cause no symptoms, but is often associated with palpitations, fainting, chest pain, or congestive heart failure. The cause of an individual's AF may not be identified.