Patrizi, A, F Savoia, I Neri, and F. Bardazzi. “An Incomplete Circle of Alopecia: A New Case of Halo Scalp Ring?”. Acta Dermato-Venereologica 86, no. 1 (April 6, 2006): 65–66. Accessed June 27, 2026. https://medicaljournalssweden.se/actadv/article/view/8163.