Larsen JR, Vedtofte L, Holst JJ, et al. Does a GLP-1 receptor agonist change glucose tolerance in patients treated with antipsychotic medications? Design of a randomised, double-blinded, placebo-controlled clinical trial. BMJ Open 2014;4:e004227. The name of the sixth author of this paper is misspelt. His last name should be spelled Correll instead of Corell.