The layperson as the primary health care practitioner.
D001291:Attitude of Health Personnel; D002908:Chronic Disease; D003256:Community Participation; D003695:Delivery of Health Care; D006266:Health Education; D005102:Health Expenditures; D006801:Humans; D009042:Motivation; D011320:Primary Health Care; D012922:Social Change; D012926:Social Control, Formal; D014481:United States