Anesthesiology society bans co-author of researcher with record-number of retractions

The Japanese Society of Anesthesiologists has permanently banned a co-author of notorious fraudster Yoshitaka Fujii, after investigating many of his publications for alleged fraud. According to the announcement last month (in Japanese), a committee investigated approximately 40 publications by Yuhji Saitoh of Yachiyo Medical Center and Tokyo Women’s Medical University in Japan. Saitoh resigned from the society once … Continue reading Anesthesiology society bans co-author of researcher with record-number of retractions

Co-author of retraction record-holder likely fabricated his own data, analysis shows

In 2012, John Carlisle, a British anesthesiologist, demonstrated conclusively using statistics that Yoshitaka Fujii had faked data in many studies. Fujii — as followers of this blog well know — now holds the record for most retractions by an individual author (183). Carlisle’s work accomplished two things: It put to rest any doubt that problems … Continue reading Co-author of retraction record-holder likely fabricated his own data, analysis shows

A year ago, an academic society recommended nine papers be retracted. Journals have retracted only two.

Last year, an academic society recommended that journals retract nine papers by a researcher in Japan who collaborated with a notorious fraudster. Only two have been retracted. The researcher is Yuhji Saitoh of Yachiyo Medical Center and Tokyo Women’s Medical University, who co-authored many papers with Yoshitaka Fujii, an anethesiologist who holds the dubious distinction … Continue reading A year ago, an academic society recommended nine papers be retracted. Journals have retracted only two.

Society recommends 9 retractions for co-author of researcher with record number of retractions

The Japanese Society of Anesthesiologists (JSA) has requested the retraction of nine additional papers by a co-author of fraudster Yoshitaka Fujii, after investigating allegations of fraud in dozens of papers. According to the report, a committee investigated approximately 40 publications by Yuhji Saitoh of Yachiyo Medical Center and Tokyo Women’s Medical University and “identified ten publications with clear … Continue reading Society recommends 9 retractions for co-author of researcher with record number of retractions

Anesthesia journal pulls study lacking patient consent

An anesthesia journal has retracted a paper after an author admitted that the study did not obtain appropriate consent from patients receiving a neuromuscular block in muscles on the face and hands.  The first author, Yuhji Saitoh, has the same name as a co-author of Yoshitaka Fujii, the all-time record holder with 183 retractions listed on … Continue reading Anesthesia journal pulls study lacking patient consent

The Retraction Watch Leaderboard

Who has the most retractions? Here’s our unofficial list (see notes on methodology), which we’ll update as more information comes to light: Yoshitaka Fujii (total retractions: 183) See also: Final report of investigating committee, our reporting, additional coverage Joachim Boldt (96) See also: Editors-in-chief statement, our coverage Diederik Stapel (58) See also: our coverage Adrian Maxim … Continue reading The Retraction Watch Leaderboard