Prowse RL, Dalbeth N, Kavanaugh A, Adebajo AO, Gaffo AL, Terkeltaub R, Mandell BF, Suryana BP, Goldenstein-Schainberg C, Diaz-Torne C, Khanna D, Lioté F, McCarthy G, Kerr GS, Yamanaka H, Janssens H, Baraf HF, Chen JH, Vazquez-Mellado J, Harrold LR, Stamp LK, Van De Laar MA, Janssen M, Doherty M, Boers M, Edwards NL, Gow P, Chapman P, Khanna P, Helliwell PS, Grainger R, Schumacher HR, Neogi T, Jansen TL, Louthrenoo W, Sivera F, Taylor WJ. A Delphi exercise to identify characteristic features of gout — opinions from patients and physicians, the first stage in developing new classification criteria. J Rheumatol 2013;40:498–505. The following name should be added to the author list: Rieke Alten (MD, PhD, Department of Internal Medicine, Rheumatology, Clinical Immunology, Schlosspark-Klinik, Teaching Hospital, Charité University Medicine, Berlin, Germany). We regret the error.