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Animal
3
Female
Male
Pregnancy
Rats
3
Support, Non-U.S. Gov't
endocrine system
rat
3
Estrus
2
Rats, Inbred Strains
2
Testosterone
2
animal experiment
2
prolactin
2
radioisotope
2
testosterone h 3
2
3 oxo 4 etienic acid
1
5alpha androstane 3alpha,17beta diol c 14
1
Aging
1
Body Weight
1
Castration
1
Cattle
1
Circadian Rhythm
1
Comparative Study
1
Depression, Chemical
1
Diestrus
1
English Abstract
1
Epididymis
1
Epitestosterone
1
Estradiol
1
Fertility
1
-
1
-
2
-
3