title: Sildenafil citrate (VIAGRA) in the treatment of erectile dysfunction: a 12-week, flexible-dose study to assess efficacy and safety.
authors.affiliation: South Coast Urological Medical Group, Laguna Hills, California, US.
authors.forename: J
authors.initials: J
authors.lastname: Young
mesh_terms: D004311:Double-Blind Method; D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D008297:Male; D010726:Phosphodiesterase Inhibitors / Q000627:therapeutic use*; D010879:Piperazines / Q000627:therapeutic use*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones; D011795:Surveys and Questionnaires
chemical_list: D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate