Alison McCook:

Dartmouth College investigation has concluded that Dr. H. Gilbert Welch, one of the country’s most prominent health care policy scholars, committed research misconduct in connection with a paper published in a top medical journal.

Welch plagiarized material from a Dartmouth colleague and another researcher at a different institution, according to a letter from the college’s interim provost obtained by Retraction Watch. The material was included in a 2016 paper published by the New England Journal of Medicine. The work found that breast cancer screening was more likely to overdiagnose tumors (leading to unnecessary treatments) than pick up early cases that are destined to become life-threatening.

Welch is a well-known critic of unnecessary medical screening and interventions, and has written several popular books on the topic. He is frequently quoted in media discussions of health care costs.