1. Chulalongkorn Centre of Excellence for Parkinson's Disease & Related Disorders, Faculty of Medicine Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society Bangkok Thailand
2. Division of Medical Oncology, Department of Medicine, Faculty of Medicine Chulalongkorn University and the King Chulalongkorn Memorial Hospital Bangkok Thailand
3. The Academy of Science, The Royal Society of Thailand Bangkok Thailand