1. Classification and diagnostic criteria for headache disorders, cranial neuralgias and facial pain;Cephalalgia,1988
2. The International Classification of Headache Disorders: 2nd edition;Cephalalgia,2004
3. Tension-type headache;Millea;Am Fam Physician,2002
4. Epidemiology of tension-type headache;Schwartz;JAMA,1998
5. Tension-type headache;Mathew;Curr Neurol Neurosci Rep,2006