1. Gonadal hormones organize and modulate the circadian system of the rat;Albers;Am. J. Physiol.,1981
2. Effect of reproductive state on circadian periodicity in the rat;Albers;Physiol. Behav.,1981
3. The effects of progesterone on the amplitude, periodicity and onset of estrous activity cycles in the intact female rat;Axelson;Biol. Reprod.,1979
4. Effects of progesterone on the estrous activity cycle of the rat;Axelson;Physiol. Behav.,1981
5. Peripheral levels of estrogen in the cyclic hamster;Baranczuk;Endrocrinology,1973