TY - BOOK AU - CUNNINGHAM, F GRAY AU - Cunningham,F.Gary AU - Williams,J.Whitridge TI - Williams obstetrics SN - 9780071497015 (hardcover : alk. paper) AV - RG524 .W7 2010 U1 - 618.2 22 PY - 2010/// CY - New York PB - McGraw-Hill Medical KW - Obstetrics N1 - include index; Includes bibliographical references and index ER -