Comparative effects of drug interventions for the acute management of migraine episodes in adults: systematic review and network meta-analysis by Karlsson, WK, Ostinelli, EG, Zhuang, ZA, Kokoti, L, Christensen, RH, Al-Khazali, HM, Deligianni, CI, Tomlinson, A, Ashina, H, Ruiz de la Torre, E, Diener, H, Cipriani, A, Ashina, M