1 Drs. Suga, Nagamine, Tu, and Toyofuko are with the Department of Psychosomatic Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University in Tokyo, Japan.
2 Dr. Nagamine is with the Department of Psychiatric Internal Medicine, Sunlight Brain Research Center in Hofu, Japan.
3 Dr. Tu is with the Department of Basic Dental Science, Faculty of Odonto-Stomatology, Ho Chi Minh Medicine and Pharmacy University in Ho Chi Minh City, Vietnam.
4 Dr. Moriyama is with the Department of Maxillofacial Orthognathics, Graduate School of Tokyo Medical and Dental University in Tokyo, Japan.