Lippincott, Williams & Wilkins, Obstetrics & Gynecology, 4(100), p. 796-800, 2002
DOI: 10.1097/00006250-200210000-00029
Lippincott, Williams & Wilkins, Obstetrics & Gynecology, 4(100), p. 796-800, 2002
DOI: 10.1016/s0029-7844(02)02146-4
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