CLARK STEVEN L. 300.265 ANNUAL 18th Annual Clinical, Scientific, and Business Meeting of the Society of Perinatal Obstetricians February 2-7, 1998 /Officers President Steven L. Clark [et al] ; [Program Comm. James N. Martin, Jr..Program chair et all. - [St. Louis : by Mosby, Inc.], 1998. - XXII, 242 s. : wykr . ;29cm. - (America Journal of Obstetrics and Gynecology, ISSN 002,9378; vol 178,nr l.pt . 2)