Effect of Infusion of Calcitonin Gene-Related Peptide on Cluster Headache Attacks: A Randomized Clinical Trial - Vollesen, Anne Luise H; Snoer, Agneta; Beske, Rasmus P; Guo, Song; Hoffmann, Jan; Jensen, Rigmor H; Ashina, Messoud (JAMA neurology, 2018)