Incidence of spina bifida occulta in Andhra area in India.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007194:India; D008159:Lumbar Vertebrae / Q000002:abnormalities; D008297:Male; D008875:Middle Aged; D012447:Sacrum / Q000002:abnormalities; D016135:Spinal Dysraphism / Q000453:epidemiology*