title: Clinical research in dental practice.
mesh_terms: D002986:Clinical Trials as Topic; D003813:Dentistry; D004812:Epidemiologic Methods; D004990:Ethics, Dental; D005163:Factor Analysis, Statistical; D005582:Foundations; D006801:Humans; D009520:New Zealand; D010919:Placebos; D012106:Research
chemical_list: D010919:Placebos