Dr. H. Gilbert Welch is an academic physician, a professor at Dartmouth Medical School, and a nationally recognized expert on the effects of medical testing. He sees the value of medical care, particularly in those who are acutely ill or injured. But in many other settings, we have exaggerated the benefits of medical care and understated its harms. In this video, Dr. Welch examines some widely held assumptions about the value of medical care.

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