TY  - RPRT
TI  - Recent progress and future aims in obstetrics.
AU  - G Godber
PY  - 1971
DO  - 10.1111/j.1471-0528.1971.tb00258.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5558836/
ID  - 5558836
ER  -