Theory and practice of International Comparative Study in collaboration with Japan.
D000293:Adolescent; D000328:Adult; D002648:Child; D003695:Delivery of Health Care; D003752:Dental Health Services; D006801:Humans; D007391:International Cooperation; D007564:Japan; D009909:Oral Health; D014481:United States; D014492:United States Public Health Service; D014944:World Health Organization