1. Faculty of Medicine Chulalongkorn University Bangkok Thailand
2. Division of Neurology, Department of Medicine, Faculty of Medicine Chulalongkorn University, King Chulalongkorn Memorial Hospital Bangkok Thailand
3. Chula Neuroscience Center, King Chulalongkorn Memorial Hospital, Faculty of Medicine Chulalongkorn University Bangkok Thailand
4. Department of Pharmacology, Faculty of Medicine Chulalongkorn University Bangkok Thailand