title: Oral sildenafil in erectile dysfunction.
authors.forename: K M
authors.initials: KM
authors.lastname: Chan-Tack
mesh_terms: D015106:3',5'-Cyclic-GMP Phosphodiesterases / Q000037:antagonists & inhibitors; D004791:Enzyme Inhibitors / Q000627:therapeutic use*; D006801:Humans; D018783:Impotence, Vasculogenic / Q000188:drug therapy*; D008297:Male; 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; D015106:3',5'-Cyclic-GMP Phosphodiesterases