Harrison, WH, RM Gray, and LM. Solomon. “Incorporation of L-Dopa, L-Alpha-Methyldopa and DL-Isoproterenol into Guinea Pig Hair”. Acta Dermato-Venereologica 54, no. 4 (July 1, 1974): 249–253. Accessed June 26, 2026. https://medicaljournalssweden.se/actadv/article/view/17651.