TY JOUR TI Defects in the work of dentists in the compulsory health insurance system KW compulsory health insurance KW dental care KW dentists work-related defects JO Actual problems in dentistry AU Lebedjancev, V.V. AU Kochkina, N.N. AU Poljakova, E.V. AU Kamalitdinova, N.M. PY 2016 IS 12 PB TIRAZH Publishing House