TY  - BOOK
AU  - Ellwood,David A.
AU  - Anderson,Anne B.M.
TI  - The cervix in pregnancy and labour: clinical and biochemical investigations 
SN  - 0443023042
PY  - 1981///
CY  - Edinburgh
PB  - Churchill Livingstone
KW  - Cervix uteri
KW  - Pregnancy
N1  - Includes bibliographies
ER  -