Lippincott, Williams & Wilkins, Obstetrics & Gynecology, 2(99), p. 260-266, 2002
DOI: 10.1097/00006250-200202000-00017
Lippincott, Williams & Wilkins, Obstetrics & Gynecology, 2(99), p. 260-266, 2002
DOI: 10.1016/s0029-7844(01)01684-2
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