title: 21st Annual Meeting of the Society for Maternal-Fetal Medicine. February 5-10, 2001. Reno, Nevada, USA. Abstracts.
mesh_terms: D005314:Embryonic and Fetal Development; D005260:Female; D006176:Gynecology; D006801:Humans; D009774:Obstetrics; D011247:Pregnancy; D011248:Pregnancy Complications