title: Puzzles in the causation and epidemiology of prostate cancer--a sombre outlook.
authors.forename: Alexander R
authors.initials: AR
authors.lastname: Walker
authors.forename: Betty F
authors.initials: BF
authors.lastname: Walker
mesh_terms: D000349:Africa / Q000453:epidemiology; D044383:Black People / Q000706:statistics & numerical data; D005060:Europe / Q000453:epidemiology; D006801:Humans; D008017:Life Expectancy; D008297:Male; D011471:Prostatic Neoplasms / Q000453:epidemiology* / Q000209:etiology*; D014481:United States / Q000453:epidemiology; D044465:White People / Q000706:statistics & numerical data; D001741:Black or African American