TY  - BOOK
AU  - Chudleigh,Patricia
AU  - Pearce,J.Malcolm
TI  - Obstetric ultrasound: how, why and when  
SN  - 0443042071
PY  - 1997///
CY  - Edinburgh
PB  - Churchill Livingstone
KW  - Pregnancy Complications
KW  - ultrasonography
KW  - Prenatal Diagnosis
KW  - methods
ER  -