title: [Incidence of cryptorchism in boys of school age].
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D003456:Cryptorchidism / Q000453:epidemiology*; D006801:Humans; D008297:Male
vernacular_title: Czestość wystepowania kryptorchizmu u chłopców w wieku szkolnym.