1. Current Obstetric and Gynecologic Diagnosis and Treatment;Benson,1978
2. A 21 year survey of 654 ectopic pregnancies;Breen;Am J Obstet Gynecol,1970
3. Ectopic pregnancy;Brenner;JAMA,1980
4. Ectopic pregnancy-current clinical trends;Kitchin;Am J Obstet Gynecol,1979
5. Cornual pregnancy-diagnosis before rupture: A report of two cases;Maher;Aust NZ J Obstet Gynecol,1982