Supplemental progesterone delays heat termination and the loss of progestin receptors from hypothalamic cell nuclei in female guinea pigs.
Brown TJ, Blaustein JD. Supplemental progesterone delays heat termination and the loss of progestin receptors from hypothalamic cell nuclei in female guinea pigs. Neuroendocrinology. 1984 Nov; 39(5):384-91.