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[Comment] Retraction—Tracheobronchial transplantation with a stem-cell-seeded bioartificial nanocomposite: a proof-of-concept study

Following our Expression of Concern1 we have now received further information about the conduct of the study by Philipp Jungebluth and colleagues.2 In letters to The Lancet, the President of the Karolinska Institute has sent the results and conclusions of the final investigation that has identified serious flaws in the conduct and reporting of this study. The report concludes there was scientific and ethical misconduct and requests retraction of the paper. The Lancet is therefore retracting this research article from the scientific record.