Cabergoline for migraine prevention (PROTECT): Protocol for a randomized, placebo-controlled, double-blind trial. - Hjelholt, Astrid Johannesson; Laugesen, Kristina; Tei, Randi Maria Hanghøj; Kasch, Helge; Diener, Hans-Christoph; Jørgensen, Jens Otto Lunde (Cephalalgia Reports, 2026)