Health insurance, the medical profession, and the public health; including the results of a study of sickness expectancy.
D003695:Delivery of Health Care; D006285:Health Planning; D049673:History, 20th Century; D006801:Humans; D007348:Insurance, Health / Q000266:history*; D009017:Morbidity; D011634:Public Health / Q000266:history*; D014481:United States