Urology in hospitals of the United States and Canada, 1963 and 1964: report of a statistical study.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002170:Canada; D002648:Child; D002675:Child, Preschool; D003201:Computers; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D014481:United States; D014570:Urologic Diseases / Q000453:epidemiology* / Q000601:surgery*