1. Diagnosis and management of intrauterine device with missing tail;Ansari;Obstet Gynecol,1974
2. Removal of intrauterine contraceptive devices after uterine perforation;Allen;Obstet Gynecol,1972
3. A reappraisal of intrauterine contraceptive devices;Hall;Am J Obstet Gynecol,1967
4. Ultrasonic detectors, localization, and identification of intrauterine contraceptive devices;Janssens;Contraception,1973
5. Intrauterine contraceptive devices: The recognition and management of uterine perforations;Ledger;Obstet Gynecol,1966