SPEROFF, L . A CLINICAL GUIDE FOR CONTRACEPTION / Textual Documents NULL. - 4 / . - NULL : LIPPINCOTT WILLIAMS & WILKINS , 2005. - 434 : xi ; NULL . PSM ISBN: 0781764882 2104.00 Subjects--Index Terms: OBST. & GYNAEC. Dewey Class. No.: 618.2 / SPE/DAR