TY  - RPRT
TI  - Preovulatory progesterone supplementation.
AU  - J H Check
PY  - 1990
DO  - 10.1016/s0015-0282(16)53785-6
UR  - https://pubmed.ncbi.nlm.nih.gov/2397803/
ID  - 2397803
ER  -