Instances of Scientific Misconduct

Yoshitaka Fujii

Yoshitaka Fujii, at one time, received the world’s most retractions (roughly 183) due to scientific misconduct. Along with his co-author Yuhji Saitoh of Yachiyo Medical Center and Tokyo Women’s Medical University (who is also featured on this site for at one time receiving 53 retractions), Fujii had many papers retracted due to the falsification/fabrication of data and results, lack of IRB (Institutional Review Board) approval, lack of patient/participant consent, ethical violations by author, and general concerns about data and results. Both Yoshitaka Fujii and Yuhji Saitoh were members of the Japanese Society of Anesthesiology (JSA), but received permanent bans from the society due to their misconduct. Their retractions were evaluated based on the codes of COPE (Committee of Publication Ethics) and their retracted papers were within the scopes of anesthesia, pharmacology, toxicology, neurology, neuroscience, etc.

2001 Fujii papers retracted — finally. What took so long? (Retraction Watch, February 3, 2016)

An Analysis of Retractions of Papers Authored by Scott Reuben, Joachim Boldt and Yoshitaka Fujii (National Library of Medicine, August 24, 2018)

Anesthesiologist Fabricates 172 Papers (The Scientist, July 3, 2012)

Catching up: Publisher to pull four papers by retraction record holder flagged years ago (Retraction Watch, December 20, 2016)

Co-author of retraction record-holder likely fabricated his own data, analysis shows (Retraction Watch, December 20, 2016)

How one NHS anaesthetist is fighting international medical research fraud (The Conversation, October 8, 2019)

How the Biggest Fabricator in Science Got Caught (Nautilus, May 21, 2015)

How the Biggest Fabricator in Science Got Caught (Nautilus, July 22, 2019)

Meet Yoshitaka Fujii, the most prolific fraudster in modern science (Vox News, May 21, 2015)

Numerous Retractions Lead to Permanent Ban for Japanese Anesthesia Researcher (Anesthesiology News, June 9, 2017)

Retraction record broken, again: University report should up Fujii total to 183 (Retraction Watch, January 15, 2013)

Retraction record rocks community (Nature, September 19, 2012)

Society recommends 9 retractions for co-author of researcher with record number of retractions (Retraction Watch, October 9, 2017)

The 4th Horseman: Research Fraud & Mountains of Fujii (MetaJournal, November 10, 2020)

Things Fall Apart: A Look at Retractions in Gastroenterology (Gastroenterology & Endoscopy News, April 15, 2019)

This scientist nearly went to jail for making up data (The Washington Post, April 1, 2016)

Top five retracted science stories of 2012 (CBS News, December 21, 2012)

What took more than five years? Elsevier retracts 20 papers by world’s most prolific fraudster (Retraction Watch, May 17, 2018)

When it comes to retracting papers by the world’s most prolific scientific fraudsters, journals have room for improvement (Retraction Watch, September 6, 2018)

Yoshitaka Fujii (Knowledia, July 3, 2012)

Zombie papers: Why do papers by the most prolific fraudster in history keep getting cited? (Retraction Watch, April 1, 2020)