TY  - BOOK
AU  - Ling,Frank W.
AU  - Duff,W.Patrick
TI  - Obstetrics and gynecology: principles for practice 
SN  - 0838572014
PY  - 2001///
CY  - New York
PB  - McGraw-Hill
KW  - Genital Diseases, Female
KW  - Pregnancy Complications
KW  - Women's Health
N1  - Includes bibliographical references and index
ER  -