A substantial number of retracted randomized clinical trials can be linked to a small group of scientists, results of a retrospective cohort study showed.Six “super-retractors” have coauthored more than 20% of retracted randomized clinical trials. Additionally, a group of top-cited scientists in their respective fields who have at least 10 retractions have coauthored 25% of retracted randomized clinical trials.Altered or fabricated data from these sources have lasted significantly longer in the literature than retracted trials that did not come from these sources.“The literature is much more