title: Sildenafil: a novel effective oral therapy for male erectile dysfunction.
authors.forename: J
authors.initials: J
authors.lastname: Mulhall
mesh_terms: D004791:Enzyme Inhibitors / Q000627:therapeutic use*; D006801:Humans; D018783:Impotence, Vasculogenic / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D010410:Penile Erection; D010879:Piperazines / Q000627:therapeutic use*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D004791:Enzyme Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate