TY  - RPRT
TI  - Fetal position and skull shape.
AU  - R Sunderland
PY  - 1981
DO  - 10.1111/j.1471-0528.1981.tb00976.x
UR  - https://pubmed.ncbi.nlm.nih.gov/7193477/
ID  - 7193477
ER  -