Unions, employers and health services.
D000328:Adult; D001294:Attitude to Health; D001315:Australia; D003752:Dental Health Services / Q000706:statistics & numerical data*; D006279:Health Maintenance Organizations; D006801:Humans; D007347:Insurance, Dental / Q000191:economics; D007750:Labor Unions; D009786:Occupational Health Services; D011314:Preventive Health Services; D012923:Social Class; D014481:United States