TY  - RPRT
TI  - Cervical pregnancy.
AU  - C Petterson
AU  - D Chan
PY  - 1983
DO  - 10.5694/j.1326-5377.1983.tb136198.x
UR  - https://pubmed.ncbi.nlm.nih.gov/6843446/
ID  - 6843446
ER  -