TY  - RPRT
TI  - Progesterone concentrations--physiologic or pharmacologic?
AU  - D V Spicer
AU  - G Ursin
AU  - M C Pike
PY  - 1996
DO  - 10.1016/s0015-0282(16)58295-8
UR  - https://pubmed.ncbi.nlm.nih.gov/8612843/
ID  - 8612843
ER  -