Cardiac arrhythmias that are characterized by excessively slow HEART RATE, usually below 50 beats per minute in human adults. They can be classified broadly into SINOATRIAL NODE dysfunction and ATRIOVENTRICULAR BLOCK. 关联 Nadolol 纳多洛尔 靶点 p53 作用机制 p53刺激剂 在研机构 Sumitomo Pharma Co., ...