1. Bilateral simultaneous tubal pregnancy;Fishback;Am J Obstet Gynecol,1939
2. Bilateral simultaneous tubal pregnancy;Norris;Can Med Assoc J,1953
3. Bilateral tubal pregnancy. A report of an unusual case;Tabachnikoff;J Reprod Med,1998
4. Combined tubal and cornual pregnancy in a patient without risk factors. A case report;Rondeau;J Reprod Med,1997
5. Fertility after bilateral tubal pregnancy-modern treatment considerations;Mathelier;Int J Fertil,1990