title: Some men who take Viagra die--why?
authors.forename: M
authors.initials: M
authors.lastname: Mitka
mesh_terms: D002318:Cardiovascular Diseases / Q000401:mortality*; D006801:Humans; D008297:Male; D010726:Phosphodiesterase Inhibitors / Q000009:adverse effects*; D010879:Piperazines / Q000009:adverse effects*; D011358:Product Surveillance, Postmarketing; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate