| Affiliation: | (1) Center of the Development of Medical and Healthcare Education, Okayama University, 2-5-1, Shikata-cho, Okayama City Okayama, 700-8525, Japan;(2) Dental Fears Research Clinic, University of Washington, Box 357475 University of Washington, Seattle, WA 98195-7475, USA;(3) the Department of Special Care Dentistry, King's College Dental Institute, London, UK;(4) Department of Behavioral Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1, Shikata-cho, Okayama City Okayama, 700-8525, Japan;(5) Biostatistics Unit, King's College Dental Institute, Cutcombe Road, Denmark Hill, London, UK |
