title: The incidence of cervico-thoracic spina bifida occulta in South African negroes.
mesh_terms: D000293:Adolescent; D000328:Adult; D000353:Africa, Southern; D000354:Africa, Western; D000368:Aged; D044383:Black People; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging; D002648:Child; D005060:Europe; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009656:North America; D011859:Radiography; D016135:Spinal Dysraphism / Q000000981:diagnostic imaging / Q000453:epidemiology*; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging; D044465:White People