TY - GEN TI - 18th Annual meeting of the Society of Perinatal Obstetricians. Miami Beach, Florida, USA, February 2-7, 1998 SN - 0002-9378 PY - 1998///0218 KW - Female KW - Humans KW - Infant, Newborn KW - Obstetrics KW - Perinatology KW - Pregnancy KW - Pregnancy Complications N1 - Publication Type: Congress; Overall ER -