TY  - RPRT
TI  - THE GENERAL-PRACTITIONER OBSTETRICIAN.
AU  - P O'BRIEN
PY  - 1963
DO  - 10.1016/s0140-6736(63)92659-x
UR  - https://pubmed.ncbi.nlm.nih.gov/14049593/
ID  - 14049593
ER  -