TY  - GEN
TI  - Maternal-fetal medicine: : principles and practice 
SN  - 0721623042
U1  - 618.2 CRE 
PY  - 1989///
CY  - Philadelphia : W B Saunders
KW  - Obstetrics
KW  - Perinatology
N1  - Includes bibliographical references and index
ER  -