TY  - RPRT
TI  - Methodologic evolution in obstetrics and gynecology.
AU  - J Zander
PY  - 1976
DO  - 10.1016/0002-9378(76)90664-5
UR  - https://pubmed.ncbi.nlm.nih.gov/998670/
ID  - 998670
ER  -