TY  - RPRT
TI  - Cervical ripening: introductory remarks.
AU  - M Thiery
PY  - 1988
DO  - 10.1016/0028-2243(88)90081-0
UR  - https://pubmed.ncbi.nlm.nih.gov/3165354/
ID  - 3165354
ER  -