Khan, N. A., Wadud, S., Islam, T., Chowdhury, A. M., & Banik, S. C. (2022). Clinical profile and commonly used Drugs and their response in chronic headache patients at OPD in DNMCH. Journal of Dhaka National Medical College & Hospital, 28(1), 27–30. https://doi.org/10.3329/jdnmch.v28i1.80678