title: Editor's comment. Press release: further research supports Viagra safety profile.
authors.forename: G
authors.initials: G
authors.lastname: Williams
mesh_terms: D002318:Cardiovascular Diseases / Q000150:complications*; D000075202:Contraindications; D016757:Death, Sudden, Cardiac / Q000209:etiology; D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D008297:Male; D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate