[Radiologic study of the metacarpal sign in Japanese and American whites].
D000293:Adolescent; D000328:Adult; D000368:Aged; D044466:Asian People; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008663:Metacarpus / Q000033:anatomy & histology*; D008875:Middle Aged; D011859:Radiography; D014481:United States