title: 17th Annual meeting of the Society of Perinatal Obstetricians. Anaheim, California, January 20-25, 1997. Abstracts.
mesh_terms: D005260:Female; D005315:Fetal Diseases; D006801:Humans; D007231:Infant, Newborn; D009774:Obstetrics; D010500:Perinatology; D011247:Pregnancy; D011248:Pregnancy Complications