Staberg, B, Oxholm A, P Klemp, and Christiansen C. “Abnormal Vitamin D Metabolism in Patients With Psoriasis”. Acta Dermato-Venereologica 67, no. 1 (January 1, 1987): 65–68. Accessed September 27, 2024. https://medicaljournalssweden.se/actadv/article/view/6691.