M. A. Hossain, Q. D. Mohammad, M. Habib, M. A. Hoque, M. B. Alam, and M. E. Hussain, “Severity of Migraine with or without comorbidities: A Comparative Study”, J. Natl Inst. Neurosci Bangladesh, vol. 1, no. 2, pp. 33–36, Apr. 2017.