title: Vasectomy and prostate cancer. Chance, bias, or a causal relationship?
authors.forename: S S
authors.initials: SS
authors.lastname: Howards
authors.forename: H B
authors.initials: HB
authors.lastname: Peterson
mesh_terms: D000818:Animals; D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000453:epidemiology*; D012307:Risk Factors; D014659:Vasectomy