TY  - RPRT
TI  - Migrating placenta previa.
AU  - J S Powers
AU  - J M Hill
PY  - 1976
DO  - 10.1097/00007611-197611000-00033
UR  - https://pubmed.ncbi.nlm.nih.gov/1019654/
ID  - 1019654
ER  -