A prominent diabetes researcher based at Harvard Medical School has retracted a third paper, citing manipulation of multiple figures.
Late last year, Carl Ronald Kahnâalso chief academic officer at Joslin Diabetes Centerâretracted two papers for similar reasons. In November, Kahn pulled a 2005 paper from The Journal of Clinical Investigation (JCI) and a month later, he retracted a 2003 paper from The Journal of Biological Chemistry (JBC), both times citing duplications that the authors said were introduced while assembling the figures.
Last month, Kahn retracted his third paper, also published in JBC in 2003, because the authors omitted data when constructing the images. Still, the authors remain confident in their findings, given that data from other labs âhave confirmed and extended the conclusions of the manuscript.â
Hereâs the retraction notice: Continue reading Harvard diabetes researcher retracts third paper



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