Hammarström, Margareta, Anne-Marie Ricksten, and Peter Eneroth. “Reproductive Hormone Patterns in the Female Guinea-Pig Serum During the Estrous Cycle”. Scandinavian Journal of Laboratory Animal Science 19, no. 1 (December 1, 1992). Accessed July 18, 2024. https://ojs.utlib.ee/index.php/SJLAS/article/view/21685.