title: The closed eyes sign: an aid to diagnosing non-specific abdominal pain.
mesh_terms: D000005:Abdomen; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005123:Eye; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000175:diagnosis* / Q000209:etiology; D010173:Palpation; D011446:Prospective Studies