[On the problem of primary tumors of the heart].
D002675:Child, Preschool; D005354:Fibrosarcoma / Q000151:congenital* / Q000473:pathology; D006338:Heart Neoplasms / Q000151:congenital* / Q000473:pathology; D006801:Humans; D008297:Male
K voprosu o pervichnykh opukholiakh serdtsa.