1、Does sildenafil cause myocardial infarction or sudden cardiac death?
* 會(huì)引起心肌梗死或心源性猝死嗎？

2、He said sildenafil worked at least as well as melatonin, a jet-lag treatment.
他還認(rèn)為昔多芬的作用至少和目前用于治療時(shí)差綜合癥的退黑激素的作用類(lèi)似。

3、Objective To explore the effect of sildenafil on the hemodynamics in migrants at high altitude.
目的探討西地那非對(duì)高原移居青年血流動(dòng)力學(xué)的影響。