1. Postgraduate Program in Neuropsychiatry and Behavioral Sciences, Universidade Federal de Pernambuco (UFPE) Recife Pernambuco Brazil
2. Department of Neuropsychiatry Universidade Federal de Pernambuco (UFPE) Recife Pernambuco Brazil
3. Headache Clinic, Hospital Universitario Oswaldo Cruz, Universidade de Pernambuco (UPE) Recife Pernambuco Brazil