RETRACTED: A comparison of pretreatment with fentanyl and lidocaine preceded by venous occlusion for reducing pain on injection of propofol: A prospective, randomized, double-blind, placebo-controlled study in adult Japanese surgical patients

This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).This article has been retracted at the request of the Author.This article is one of five articles that have been retracted at the request of the author, due to the author failing to obtain institutional ethics committee approval before commencing the studies reported. The other articles are:Fujii, Y., et al., Clin. Ther., 32 (2010) 1633–1637, doi:10.1016/j.clinthera.2010.08.005;Fujii, Y., et al., Clin. Ther., 31 (2009) 721–727, doi:10.1016/j.clinthera.2009.04.014;Fujii, Y., et al., Clin. Ther., 30 (2008) 2024–2029, doi:10.1016/j.clinthera.2008.11.011;Fujii, Y., et al., Clin. Ther., 30 (2008) 280–286, doi:10.1016/j.clinthera.2008.02.018.