Surbakti, K. P. and Sjahrir, H. (2021) “The Effect of Flunarizine Prophylactic Treatment on Headache Frequency and Plasma Glutamate Levels in Chronic Tension-type Headache Patients”, Open Access Macedonian Journal of Medical Sciences, 9(T3), pp. 223–227. doi: 10.3889/oamjms.2021.6304.