TY  - RPRT
TI  - Placental position and breech presentation.
AU  - M R FELL
PY  - 1956
DO  - 10.1111/j.1471-0528.1956.tb05559.x
UR  - https://pubmed.ncbi.nlm.nih.gov/13367930/
ID  - 13367930
ER  -