Postal survey to determine how many patients continued to seek treatment with sildenafil following sildenafil trials.
Carey
F
F
Quah
S P
SP
Dinsmore
W
W
D002986:Clinical Trials as Topic; D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D008297:Male; D009660:Northern Ireland; D010342:Patient Acceptance of Health Care / Q000706:statistics & numerical data*; D010879:Piperazines / Q000191:economics / Q000627:therapeutic use*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones; D011795:Surveys and Questionnaires; D014665:Vasodilator Agents / Q000191:economics / Q000627:therapeutic use*
D010879:Piperazines; D011687:Purines; D013450:Sulfones; D014665:Vasodilator Agents; D000068677:Sildenafil Citrate