“OC-08 | Daily Eletriptan Significantly Improves Treatment-Resistant Cluster Headache: A Case Series: Andrea Burgalassi,1 Antonio Munafò,2 Francesco De Cesaris,1 Giulia Vigani,2 Alberto Chiarugi1,2 | 1Headache Center and Clinical Pharmacology Unit, Careggi University Hospital, Florence; 2Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy”. 2025. Confinia Cephalalgica, October. https://doi.org/10.4081/cc.2025.15805.