Buhl, Timo, B. Gregor Wienrich, Claudia Sieblist, Michael P. Schön, and Cornelia S. Seitz. “Development of Segmental Superficial Actinic Porokeratosis During Immunosuppressive Therapy for Pemphigus Vulgaris”. Acta Dermato-Venereologica 90, no. 2 (February 2, 2010): 212–213. Accessed June 29, 2026. https://medicaljournalssweden.se/actadv/article/view/7605.