Forslind, B., B. Lindström, and G. Swanbeck. “Microradiographic and Autoradiographic Studies of Keratin Formation in Human Hair”. Acta Dermato-Venereologica 51, no. 2 (February 1, 1971): 81–88. Accessed February 25, 2025. https://medicaljournalssweden.se/actadv/article/view/3696.