Primary health care: a review of the literature through 1972.
D000553:Ambulatory Care; D001294:Attitude to Health; D003191:Comprehensive Health Care; D003695:Delivery of Health Care; D003710:Demography; D004503:Education, Medical, Graduate; D004526:Efficiency; D005069:Evaluation Studies as Topic; D005194:Family Practice; D006761:Hospitals / Q000706:statistics & numerical data; D006801:Humans; D008511:Medicine; D010820:Physicians / Q000706:statistics & numerical data; D011314:Preventive Health Services / Q000706:statistics & numerical data; D011320:Primary Health Care; D011787:Quality of Health Care; D012017:Referral and Consultation; D012959:Socioeconomic Factors; D013038:Specialization; D006113:United Kingdom; D014481:United States