Sjövall, P, and Christensen OB. “Local and Systemic Effect of UVB Irradiation in Patients With Chronic Hand Eczema”. Acta Dermato-Venereologica 67, no. 6 (November 1, 1987): 538–541. Accessed June 27, 2026. https://medicaljournalssweden.se/actadv/article/view/6600.