title: Plain film analysis in sigmoid volvulus.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D012809:Colon, Sigmoid / Q000000981:diagnostic imaging*; D003108:Colonic Diseases / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D005740:Gases; D006801:Humans; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011859:Radiography
chemical_list: D005740:Gases