Varella, TC, MY Nishimura, MC Machado, D de Moraes-Vasconcelos, and EA. Rivitti. “Schnitzler’s Syndrome Without Monoclonal Gammopathy”. Acta Dermato-Venereologica 85, no. 3 (May 23, 2005): 272–273. Accessed June 20, 2026. https://medicaljournalssweden.se/actadv/article/view/13559.