title: Viagra is licensed in Europe, but rationed in Britain.
authors.forename: A
authors.initials: A
authors.lastname: Brooks
mesh_terms: D016527:Drug Costs; D004791:Enzyme Inhibitors / Q000191:economics / Q000600:supply & distribution*; D005060:Europe; D015276:Health Care Rationing; D006801:Humans; D007880:Legislation, Drug; D008297:Male; D018579:Patient Selection; D010879:Piperazines / Q000191:economics / Q000600:supply & distribution*; D011687:Purines; D040841:Resource Allocation; D000068677:Sildenafil Citrate; D013222:State Medicine / Q000191:economics; D013450:Sulfones; D006113:United Kingdom
chemical_list: D004791:Enzyme Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate