Ya. Abdullaiev Rizvan, I. Kalashnikov Valeriy, L Tovazhnyanska Olena, N. Stoyanov Alexander, I. Kauk Oksana, Brain Hemodynamics and Cerebrovascular Reactivity in Patients with Tension-Type HeadacheAffiliation, Journal of Neurological Research And Therapy, Volume 2, Issue 4, 2019, Pages 15-27, ISSN 2470-5020, https://doi.org/10.14302/issn.2470-5020.jnrt-18-2555. (http://oap-journals.orgjnrt/article/970) Keywords: Transcranial dopplerography (TCD); Doppler ultrasound; Phenibut (Noophen); Cerebral Hemodynamic; Tension–type Headache (TTH).