title: The health policy issue: major changes in our understanding of health problems.
mesh_terms: D001294:Attitude to Health; D002908:Chronic Disease; D003256:Community Participation; D003695:Delivery of Health Care; D006281:Health Occupations / Q000193:education; D006285:Health Planning; D006296:Health Services; D006801:Humans; D013677:Medical Laboratory Science; D011320:Primary Health Care; D011634:Public Health; D012106:Research