Benjamin Mueller, The New York Times; Columbia Cancer Surgeon Notches 5 More Retractions for Suspicious Data
"The chief of a cancer surgery division at Columbia University this week had five research articles retracted and a sixth tagged with an editor’s note, underscoring concerns about research misconduct that have lately bedeviled Columbia as well as cancer labs at several other elite American universities.
With the latest retractions, the Columbia lab, led by Dr. Sam Yoon, has had more than a dozen studies pulled over suspicious results since The New York Times reported in February on data discrepancies in the lab’s work.
The retracted studies were among 26 articles by Dr. Yoon and a more junior collaborator that a scientific sleuth in Britain, Sholto David, revealed had presented images from one experiment as data from another, a tactic that can be used to massage or falsify the results of studies.
Dr. Yoon’s more junior collaborator, Changhwan Yoon, no longer works in the lab, Columbia said in response to questions on Wednesday. But the university has said little else about what, if anything, it has done to address the allegations.
Since the Times article in February, Dr. Yoon’s name has been changed from Sam Yoon to S. Sunghyun Yoon on a Columbia website advertising surgical treatment options."
