Leading poisoning from ingestion of lead shot.
D000056:Accident Prevention; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007717:Knee / Q000000981:diagnostic imaging; D007855:Lead Poisoning / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D010988:Play and Playthings; D011859:Radiography