TY  - RPRT
TI  - Contraceptives.
AU  - P A Corfman
AU  - C Djerassi
PY  - 1970
DO  - 10.1126/science.167.3923.1315
UR  - https://pubmed.ncbi.nlm.nih.gov/5467060/
ID  - 5467060
ER  -