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Fig. 1 | BMC Neurology

Fig. 1

From: Cerebrovascular reactivity after functional activation of the Brain using Photic Stimulation in Migraine and Tension Type Headache: a transcranial doppler Ultrasonography Study

Fig. 1

Correlation between CVR of MCA and ACA of migraine patients and duration of disease in months (1st and 2nd trace), and correlation between CVR of VA and number of attacks per month in chronic tension headache (3rd trace). There are significant negative correlation between CVR of MCA and ACA in migraineurs patients and duration of illness (P = 0.042, and 0.035 respectively). A significant positive correlation between CVR of VA in TTH group and frequency of attacks (P = 0.016)

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BMC Neurology

ISSN: 1471-2377

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