title: Letter from California-- quality assurance.
mesh_terms: D002140:California; D003149:Community Dentistry; D003729:Dental Care; D003796:Dental Service, Hospital; D004497:Education, Dental; D005792:General Practice, Dental; D011785:Quality Assurance, Health Care; D013222:State Medicine; D006113:United Kingdom; D014481:United States