title: Viagra: a three-year sexual revolution and the need to recognise its role within the NHS.
authors.forename: G
authors.initials: G
authors.lastname: Jackson
mesh_terms: D002318:Cardiovascular Diseases / Q000150:complications; D004739:England; D007172:Erectile Dysfunction / Q000188:drug therapy* / Q000209:etiology; D006297:Health Services Accessibility / Q000458:organization & administration; D006801:Humans; D008297:Male; D010726:Phosphodiesterase Inhibitors / Q000627:therapeutic use*; D010879:Piperazines / Q000627:therapeutic use*; D011687:Purines; D000068677:Sildenafil Citrate; D013222:State Medicine; D013450:Sulfones
chemical_list: D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate