1. Differential diagnosis of pelvic pain;Marsden;Contemp Obstet Gynecol,1983
2. Acute pelvic inflammatory disease;Eschenbach,1986
3. Differential diagnosis of appendicitis and pelvic inflammatory disease: a prospective analysis;Bongard;Am J Surg.,1985
4. The unnecessary laparotomy for appendicitis — can it be decreased?;Dunn;Am Surgeon.,1982
5. Cope's early diagnosis of the acute abdomen;Silen,1987