Ojo A, Zhang S, Bleibdrey N, Zimskind D, Keshvani N, Chalmers R. Persistence and switching patterns of migraine prophylactic medications in Canada: A retrospective claims analysis comparing adherence and evaluating the economic burden of illness . J Pharm Pharm Sci [Internet]. 2023 Jan. 7 [cited 2024 Aug. 16];25:402-17. Available from: https://journals.library.ualberta.ca/jpps/index.php/JPPS/article/view/33158