TY  - RPRT
TI  - A "mini wedge" for obstetrics.
AU  - C B Collier
PY  - 1977
DO  - 10.1111/j.1365-2044.1977.tb11662.x
UR  - https://pubmed.ncbi.nlm.nih.gov/860818/
ID  - 860818
ER  -