ABSTRACTS 301.103 Abstracts of scientific papers presented at the Society for Obsteric Anesthesia and Perinatology 30th Annual Meeting Vancouver, BC, Canada April 29 - May 2, 1998. -[Philadelphia] : by Lippincott-Raven Publ., 1998. - [5], 26 s. : wykr. ; 27 cm. -(Anesthesiology, ISSN 0003-3022 ; April, suppl.)