Can clinical data predict the outcome of occipital nerve stimulation in refractory chronic cluster headache? - Membrilla, Javier A; Cuadrado, Maria-Luz; Gonzalez-Garcia, Nuria; Porta-Etessam, Jesus; Sanchez-Soblechero, Antonio; Lozano-Ros, Alberto; Gonzalez-Martinez, Alicia; Beatriz Gago-Veiga, Ana; Quintas, Sonia; Rodriguez-Vico, Jaime S; Jaimes, Alex; Llorente-Ayuso, Lucia; et al. (CEPHALALGIA, 2023)