1. Department of Pediatrics; Dalhousie University; Halifax Nova Scotia Canada
2. Department of Pediatrics; IWK Health Centre; Halifax Nova Scotia Canada
3. Epilepsy Center; Ann & Robert H. Lurie Children's Hospital of Chicago; Chicago Illinois U.S.A
4. Neuropediatric Department; University of Kiel; Kiel Germany
5. Department of Neurology; Child and Adolescent Neurology; Mayo Clinic; Rochester Minnesota U.S.A