“PO-56 | The Role of Bilateral Greater Occipital Nerve Block in Resistant Chronic Migraine With Medication Overuse: Leonardo Troilo, Letizia Curto, Giulia Procopio, Antonia Di Chirico, Gabriele Siciliano, Sara Gori, Filippo Baldacci | Neurology Unit, Department of Clinical and Experimental Medicine, University of Pisa-AOUP, Pisa, Italy”. 2025. Confinia Cephalalgica 35 (S1). https://doi.org/10.4081/cc.2025.15879.