Abstract:Background: headaches account for 10% of all consultations with the general practitioner, and the third leading cause of emergency department visits. The current prevalence of headache can go from 7.4% to 22.7% and may be associated with much comorbidity, and can cause significant disabilities in an individual's quality of life. Methodology: in this paper we carried out a systematic review on 32 observational (nonrandomized) studies using PUBMED. Aim: our aim in the study is to evaluate the prevalence, associa… Show more
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