This viewpoint article by Don Berwick refers to Immanuel Kant's
  concept of the "moral heart" and writes about the moral imperative
  for health care workers and institutions to adopt a broad vision of
  their responsibilities and opportunities for improving the health of
  society. He talks about the "subway stop" phenomenon, namely,
  the importance of neighborhood or zip code in determining health
  status and longevity.  Recommended by Don Parsons. 
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