Okamoto, Eisaku, Michitaka Demizugawa, Yoshiro Otsuki, Tetsu Takagi, Nobuaki Mitsuda, and Osamu Tanizawa. “Study of Immunoreactive 8-Arginine Vasopressin in Human Plasma During Pregnancy and at Delivery : Utilization of a Highly Sensitive Radioimmunoassay with a Reversed Phase C18 Silica Column”. Thai Journal of Obstetrics and Gynaecology 4, no. 2 (July 1, 1992): 89–98. accessed September 28, 2026. https://he02.tci-thaijo.org/index.php/tjog/article/view/257829.