Sigmoid volvulus in India and its geographical distribution.
D000293:Adolescent; D000328:Adult; D002648:Child; D012809:Colon, Sigmoid; D005260:Female; D006801:Humans; D007194:India; D007415:Intestinal Obstruction / Q000453:epidemiology* / Q000401:mortality / Q000601:surgery; D008297:Male; D008875:Middle Aged