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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Front Neuroendocrinol. 2014 Dec 10;0:178–196. doi: 10.1016/j.yfrne.2014.11.007

Figure 3.

Figure 3

Hormone profiles of estradiol, progesterone, prolactin, and rat placental lactogens during pregnancy in the rat. Adapted from Bridges R.S., 1990. Endocrine regulation of parental behavior in rodents, in Krasnegor, N.A., Bridges, R.S. (Eds.), Mammalian Parenting: Biochemical, Neurobiological, and Behavioral Determinants, Oxford University Press, New York, pp. 93–117, with permission.