1. Interstitial pregnancy;Ash;Surg., Gynec. & Obst.,1932
2. Interstitial pregnancy ruptured through a tubal stump;D'Errico;New England J. Med.,1937
3. Extra-Uterine Pregnancy;Litzenberg,1941
4. Ectopic pregnancy;Miller;Am. J. Surg.,1940
5. Extra-Uterine Pregnancy;Schumann,1931