1 Department of Psychiatry, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
2 Department of Psychiatry, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand. tinakon.w@cmu.ac.th.
3 Psychotherapy Unit and Geriatric Psychiatry Unit, Department of Psychiatry, Faculty of Medicine, Chiang Mai University, 110 Intawaroros Rd., T. Sriphum, A. Muang, Chiang Mai, 50200, Thailand. tinakon.w@cmu.ac.th.