Penile erection was induced by intracavernous injection of PEG1 20 ug.Ten minuts later, AVSS was accomplished by watching an erotic videotape for 30 minutes.

• 所有病患均以前列腺素戊一型20微克作阴茎海绵体内注射，阴茎勃起后10分钟再予观赏30分钟色情录影炎作为视听性刺激。