Rajavithi Hospital, Ratchathewi, Bangkok, Thailand
Assistant Professor Subsai Kongsaengdao, Bangkok, Thailand
Division of Neurology, Department of Medicine, Bhumipol Hospital., Bangkok,, Thailand
Division of Neurology, Prasart Neurological Institute, Public Health Ministry., Bangkok,, Thailand
Division of Neurology, Department of Medicine, Pramongkutklao Hospital, Bangkok, Thailand