Aggarwal, D.; Heim, A. J.; Bittel, B.; Ford, D.; Dubinsky, R.; Gronseth, G.; Hairston, V.; Landazuri, P.; Sachen, F.; Herbelin, L.; Barohn, R. J. . A Randomized, Double-Blinded, Placebo-Controlled, Cross Over Study Evaluating the Efficacy and Safety of Timolol Ophthalmic Solution As an Acute Treatment of Migraine. kjm 2020, 13 (S2), 2-5. https://doi.org/10.17161/kjm.v13i.13495.