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勃起功能障碍 (ＥＤ)指持续性地出现阴茎不能达到和 (或 )保持充分勃起以致不能获得满意的性活动。其为一种常见的性功能障碍。据保守估计 ,全世界ＥＤ患者超过 1 0亿 ,若包括部分性ＥＤ ,则患病人数可能达到 1 5亿。但 2 0世纪 80年代前 ,对于ＥＤ的治疗并无确切办法 ,主要靠
Erectile Dysfunction (ED) refers to the persistent presence of sexual activity where the penis can not reach and / or remain fully erect so that satisfactory sexual activity can not be achieved. It is a common sexual dysfunction. According to conservative estimates, there are more than 10 billion ED patients in the world. If the partial ED is included, the number of patients suffering from ED may reach 150 million. But by the 1980s, there was no definitive solution to the treatment of ED, mainly by