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2. Occlusion of the Fallopian Tube with Tantalum Clips;Neumann;Am. J. Obstet. Gynecol.,1961
3. Tubal Ligation by Culdoscopy in Advances in Planned Parenthood;Gutierrez-Najar,1972
4. Culdscopic Tubal Ligation in India;Dawn,1974
5. Tubal Sterilization with Clips in Human Sterilization;Hayashi,1972