TY  - GEN
AU  - Butenandt,A
AU  - Westphal,U
TI  - Isolation of progesterone--forty years ago
SN  - 0002-9378
PY  - 1974///1009
KW  - Acetylation
KW  - Animals
KW  - Chemistry
KW  - Endocrinology
KW  - history
KW  - Female
KW  - Germany
KW  - History, 20th Century
KW  - Hot Temperature
KW  - Methods
KW  - Poland
KW  - Progesterone
KW  - isolation & purification
KW  - Swine
N1  - Publication Type: Historical Article; Journal Article
ER  -