title: Letter: Radiological studies of bowing and knock knee in South African Black schoolchildren.
mesh_terms: D000293:Adolescent; D001741:Black or African American; D044383:Black People; D002648:Child; D006225:Hand / Q000000981:diagnostic imaging*; D006801:Humans; D007866:Leg / Q000002:abnormalities*; D011859:Radiography; D012279:Rickets / Q000000981:diagnostic imaging; D013019:South Africa; D014953:Wrist / Q000000981:diagnostic imaging*