TY  - BOOK
AU  - Callen, Peter W.
TI  - Ultrasonography in obstetrics and gynecology
SN  - 9788131212837
PY  - 2008///
CY  - Philadelphia
PB  - Saunders
KW  - Gynecology
KW  - Obstetrics
KW  - Ultrasonography - Gynecology
KW  - Ultrasonography - Obstetrics
ER  -