Design and rational of the OPTIMA Study: Retreatment or Step-Up Therapy with Omalizumab in Patients with Chronic Idiopathic/Spontaneous Urticaria (CIU/CSU). SKIN The Journal of Cutaneous Medicine, [S. l.], v. 1, n. 3.1, p. s125, 2017. DOI: 10.25251/skin.1.supp.124. Disponível em: https://skin.dermsquared.com/skin/article/view/184. Acesso em: 1 may. 2026.