Correction to: The Pharmacogenomics Journal (2009) 9, 319–326; doi:10.1038/tpj.2009.21; published online 9 June 2009

The list of co-authors for this article should have appeared as Miao J, Jin Y, Marunde RL, Gorski CJ, Kim S, Quinney S, Radovich M, Li L and Hall SD. At this time, the corresponding author acknowledges Dr Christopher J Gorski for his significant contribution to the research, as he participated in all of the midazolam studies in our published meta-analysis as either a principal investigator or a co-investigator.