TY  - RPRT
TI  - Allylestrenol: a new oral progestogen.
AU  - S FIELD-RICHARDS
AU  - L SNAITH
PY  - 1961
DO  - 10.1016/s0140-6736(61)91310-1
UR  - https://pubmed.ncbi.nlm.nih.gov/13699366/
ID  - 13699366
ER  -