Wang, Huai-Peng [Advances in researches on the onset and duration of the action of sildenafil]. [electronic resource] - Zhonghua nan ke xue = National journal of andrology May 2005 - 392-5 p. digital Publication Type: English Abstract; Journal Article; Review ISSN: 1009-3591 Subjects--Topical Terms: AnimalsErectile Dysfunction--drug therapyFemaleHumansMalePhosphodiesterase Inhibitors--pharmacokineticsPiperazines--pharmacokineticsPurines--pharmacokineticsRatsSildenafil CitrateSulfones--pharmacokinetics