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Clinical profile and commonly used Drugs and their response in chronic headache patients at OPD in DNMCH. J. Dhaka Natl. Med. Coll. Hosp. [Internet]. 2022 Mar. 30 [cited 2026 Jul. 5];28(1):27-30. Available from: https://www.banglajol.info/index.php/JDNMCH/article/view/80678