Chronic Daily Headache and Medication Overuse Headache in First-Visit Headache Patients in Korea: A Multicenter Clinic-Based Study.

J Clin Neurol · 2016 · PMC4960216 · PMID 27449912

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marginal significanceno p-value reported

4.6±1.6, p =0.050), but with marginal significance ( Table 4 ).

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