TY  - RPRT
TI  - Direction, innovation, exploration: an obstetric triptych.
AU  - R C Benson
PY  - 1971
DO  - 10.1016/0002-9378(71)90599-0
UR  - https://pubmed.ncbi.nlm.nih.gov/5574619/
ID  - 5574619
ER  -