Controversy surrounding Harvard University continues following former university president Claudine Gay’s decision to step down amidst claims of plagiarism at the start of the year. Now, its renowned Dana-Farber Cancer Institute (DFCI) is embroiled in allegations of data manipulation and has already initiated multiple retractions and corrections as it investigates.

The probe, spurred by a lengthy and scathing blog post by Sholto David, an analytical scientist based in the UK, involves research conducted by top DFCI scientists, including President and CEO Laurie Glimcher, Executive Vice President and COO William Hahn and Senior Vice President for experimental medicine Irene Ghobrial, among a number of others. David’s post alleges that these DFCI leaders and other scientists manipulated and duplicated images across multiple papers.

The investigation has already resulted in flagging six papers for retractions and 31 papers for corrections, the institute told CenterWatch Weekly, while one manuscript containing a potential error is still being assessed.

DFCI Chief Scientific Officer Barrett Rollins, who noted that “correcting the scientific record is a common practice of institutions with strong research integrity processes at which basic research is conducted,” said that some of the potential data errors flagged by David were also unearthed during the institute’s own ongoing reviews.

“Following the usual practice at Dana-Farber to review any potential data error and make corrections when warranted, the institution and its scientists already have taken prompt and decisive action in 97 percent of the cases where Dana-Farber authors have primary responsibility that had been flagged by blogger Sholto David,” he added.

No further details about the investigation or the papers and authors at the center of it were provided.

Read Sholto David’s blog post here.