TY  - BOOK
AU  - Gabbe, S G (ed)
AU  - Niebyl, J R [1943-] (ed)
AU  - Simpson, J L (ed)
TI  - Obstetrics: normal and problem pregnancies
SN  - 9780443069307
PY  - 2007///
CY  - Philadelphia
PB  - Churchill Livingstone/Elsevier
ER  -