Retraction to: J Anesth (2011) 25:917–922 DOI 10.1007/s00540-011-1241-1, J Anesth (2001) 15:223–232 DOI 10.1007/s005400170007, J Anesth (1999) 13:140–143 DOI 10.1007/s005400050045, J Anesth (1994) 8:253–255 DOI 10.1007/BF02514644

To readers of the Journal of Anesthesia:

The following articles published by Dr. Yoshitaka Fujii in the Journal of Anesthesia are hereby retracted as a result of: (1) overwhelming evidence of fabrication related to the fact that the distributions of many variables reported by Dr. Fujii in these studies are exceedingly unlikely [1, 2] and (2) the inability of Dr. Fujii’s institution to attest to the integrity of the study and/or the data conducted under its auspices, as set out in the Joint Editors-in-Chief Request for Determination of April 9, 2012 [3]. In addition, the Japanese Society of Anesthesiologists Special Investigation Committee on Papers by Fujii has confirmed that these articles must be fabricated [4].

*Fujii Y, Tanaka H, Toyooka H, Amaha K. Airway occlusion pressure is an indicator of respiratory depression with isoflurane. J Anesth. 1994;8:253–5.

*Fujii Y, Tanaka H, Toyooka H. Prophylactic antiemetic therapy with droperidol in patients undergoing laparoscopic cholecystectomy. J Anesth. 1999;13:140–3.

*Fujii Y, Toyooka H. Current prevention and treatment of postoperative nausea and vomiting with 5-hydroxytryptamine type 3 receptor antagonists: a review. J Anesth. 2001;15:223–32.

*Fujii Y. Management of postoperative nausea and vomiting in women scheduled for breast cancer surgery. J Anesth. 2011;25:917–22.

Kazuyoshi Hirota, MD PhD FRCA

Editor-in-Chief, Journal of Anesthesia