Immunoreactive Corticotropin-Releasing Hormone, Adrenocorticotropin and Cortisol in Human Plasma during Pregnancy and Delivery and Postpartum - Okamoto, E; Takagi, T; Makino, T; Sata, H; Iwata, I; Nishino, E; Mitsuda, N; Sugita, N; Otsuki, Y; Tanizawa, O (Hormone and Metabolic Research, 1989)