Studies on the development of the legs of school boys under rural conditions.
D000367:Age Factors; D001699:Biometry; D002648:Child; D006801:Humans; D007564:Japan; D007866:Leg / Q000000981:diagnostic imaging / Q000254:growth & development*; D008297:Male; D011859:Radiography; D012423:Rural Health; D012737:Sex Factors