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- [36] THE EFFECT OF INTRAUTERINE-DEVICES, THE STAINLESS-STEEL RING, THE COPPER-T220, AND RELEASING LEVONORGESTREL, ON THE BLEEDING PROFILE AND THE MORPHOLOGICAL STRUCTURE OF THE HUMAN-ENDOMETRIUM - A COMPARATIVE-STUDY OF 3 IUDS - A MORPHOMETRIC STUDY OF 96 CASES CONTRACEPTION, 1989, 40 (04) : 425 - 438