References
- Sobal R. W., Vittoz-Meynard Y. Intrauterine devices broken in situ. Contraception 1970; 2: 407
- Last P. A. Fracture of the Lippes Loop in utero. J Obstet Gynecol Br Comm 1972; 79: 190
- Ota T. T. Textbook of Ota Ring. Tokyo Research Institute of Ota Ring
- Lang J. E. Fracture of Lippes Loop. Br Med J 1972; 4: 795
- Domàny Z., Hansok M. Fractured Lippes Loop and pregnancy. Br Med J 1973; 1: 549
- Yang T. S., Yang W. H. Calcium carbonate deposition on intrauterine contraceptive devices. Am J Obstet Gynecol 1971; 109: 664
- Howard C. The significance of calcium deposits occurring on intrauterine devices. J Obstet Gynecol Br Comm 1971; 78: 861
- Engineer A. D., Dusgupta P. R., Karr A. B. Chemical composition of the deposit formed on the Lippes Loop after prolonged use. Am J Obstet Gynecol 1970; 106: 315
- Kar A. B., Engineer A.D., Gael R., Kamboj V. P., Dusgupta R. R., Chowdbury S. R. Effect of an intrauterine contraceptive device on biochemical composition of uterine fluid. Am J Obstet Gynecol 1968; 101: 966
- Peplow W., Breed W. G., Jones M. J., Eckstein P. Studies on uterine flushings in the baboon. Part 1. Am J Obstet Gynecol 1973; 116: 771
- Peplow W., Breed W. G., Eckstein P. Studies of uterine flushings in the baboon. Part II. Am J Obstet Gynecol 1973; 176: 780
- Moyer D. L., Mishell D. R. Reactions of human endometrium to the intrauterine foreign body. Am J Obstet Gynecol 1971; 111: 66