title: National health plans--the challenge of management: a symposium-tribute to Nathan Sinai, Dr. P. H.
mesh_terms: D003695:Delivery of Health Care; D049672:History, 19th Century; D049673:History, 20th Century; D007348:Insurance, Health; D009313:National Health Programs; D009934:Organization and Administration; D011634:Public Health / Q000193:education / Q000266:history*; D012922:Social Change; D013222:State Medicine; D014481:United States