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INTRODUCTION Patients with headache constitute up to 4.5%of emergency department(ED)visits.[1]Cerebral venous thrombosis(CVT)is an important cause of the headache that is more common than once suspected.The diagnosis of CVT is often missed or delayed because of non-
INTRODUCTION Patients with headache contributing up to 4.5% of emergency department (ED) visits. [1] Cerebral venous thrombosis (CVT) is an important cause of the headache that is more common than once missed. The diagnosis of CVT is often missed or delayed because of non-