Opinion polls on health care.
D000574:American Medical Association; D001291:Attitude of Health Personnel; D005102:Health Expenditures; D006291:Health Policy / Q000639:trends; D006296:Health Services / Q000592:standards*; D006740:Hospital Administrators; D006801:Humans; D007348:Insurance, Health / Q000191:economics; D007750:Labor Unions; D010820:Physicians; D011639:Public Opinion; D011795:Surveys and Questionnaires; D014481:United States