Olsavszky, Victor, and Cyrill Géraud. “Slowly Growing Annular Erythematous Lesions on Lightly Pigmented Skin: A Quiz”. Acta Dermato-Venereologica 100, no. 1 (January 7, 2020): 1–3. Accessed May 28, 2026. https://medicaljournalssweden.se/actadv/article/view/1638.