title: Epidemiologic contributions to health services research.
mesh_terms: D000203:Activities of Daily Living; D003695:Delivery of Health Care; D004813:Epidemiology; D005246:Feedback; D006296:Health Services; D006801:Humans; D007348:Insurance, Health; D008134:Long-Term Care; D008887:Military Medicine; D012106:Research; D014481:United States