Combination preventive therapy with onabotulinumtoxinA and atogepant for chronic migraine: A 24-week, prospective, real-world evaluation (SYNERGY study). - Iannone, Luigi Francesco; Romozzi, Marina; Russo, Antonio; Finkelstein, Ian; Seabi, Dineo; Ahlden, Adam; Aamodt, Anne Hege; Caronna, Edoardo; Pozo-Rosich, Patricia; Tronvik, Erling Andreas; Sundal, Christina (Cephalalgia, 2025)