Regional variations in the incidence of urinary stones.
D000328:Adult; D000368:Aged; D004739:England; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010351:Patient Discharge; D013223:Statistics as Topic; D013548:Sweden; D014545:Urinary Calculi / Q000453:epidemiology*