Rubino, E.; Roveta, F.; Marcinnò, A.; Ferrandes, F.; Piella, E. M.; Rainero, I. Intravenous Methylprednisolone in Patients With Episodic Cluster Headache Non-Responders to Oral Steroids: Results from an Observational, Interventional, Single-Center Study. Confinia Cephalal 2024, 34.