TY  - RPRT
TI  - Pre-induction cervical ripening: a randomized comparison of two methods.
AU  - J Krammer
AU  - M C Williams
AU  - S K Sawai
AU  - W F O'Brien
PY  - 1995
DO  - 10.1016/0029-7844(95)00013-h
UR  - https://pubmed.ncbi.nlm.nih.gov/7898843/
ID  - 7898843
ER  -