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The Effectiveness Comparison of Valproic Acid 500 Mg and Amitriptyline 15 Mg in Reducing the Frequency of Headache Attack in Patients With Tension-Type Headache. Indian Journal of Forensic Medicine & Toxicology 2020, 14 (2), 1536-1540. https://doi.org/10.37506/ijfmt.v14i2.3143.