[On bone tumors in children and adolescents].
D000293:Adolescent; D001859:Bone Neoplasms / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D002965:Classification; D006801:Humans
O kostních nádoreh U D(ET'I A DOSP'IVAJ'IC'ICH.