Rubino, E., F. Roveta, A. Marcinnò, F. Ferrandes, E. M. Piella, and I. Rainero. “Intravenous Methylprednisolone in Patients With Episodic Cluster Headache Non-Responders to Oral Steroids: Results from an Observational, Interventional, Single-Center Study”. Confinia Cephalalgica, vol. 34, no. 1, June 2024, doi:10.4081/cc.2024.15618.