TY  - BOOK
AU  - Callen,Peter W.
TI  - Ultrasonography in Obstetricis and Gynecology
SN  - 072162331X
PY  - 1983///
CY  - Philadelphia : 
PB  - W.B. Saunders, 
KW  - ULTRASONOGRAFIA EN OBSTETRICIA
KW  - MONITOREO FETAL
ER  -