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