Chieregato, GC, and A. Leoni. “Treatment of Psoriatic Arthropathy With Etretinate: A Two-Year Follow-up”. Acta Dermato-Venereologica 66, no. 4 (July 1, 1986): 321–324. Accessed December 4, 2024. https://medicaljournalssweden.se/actadv/article/view/6746.