title: Sex differences in abdominal illness.
mesh_terms: D001064:Appendicitis / Q000453:epidemiology* / Q000266:history; D005060:Europe; D005260:Female; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008297:Male; D010437:Peptic Ulcer / Q000453:epidemiology* / Q000266:history; D012737:Sex Factors