European urology, Volume 83, Issue 5, 24 4 2023, Pages e140-e141 Erratum to "European Association of Urology (EAU) Prognostic Factor Risk Groups for Non-muscle-invasive Bladder Cancer (NMIBC) Incorporating the WHO 2004/2016 and WHO 1973 Classification Systems for Grade: An Update from the EAU NMIBC Guidelines Panel" [Eur. Urol. 79(4) (2021) 480-488]. Sylvester RJ, Rodríguez O, Hernández V, Turturica D, Bauerová L, Max Bruins H, Bründl J, van der Kwast TH, Brisuda A, Rubio-Briones J, Seles M, Hentschel AE, Kusuma VRM, Huebner N, Cotte J, Mertens LS, Volanis D, Cussenot O, Subiela Henríquez JD, de la Peña E, Pisano F, Pešl M, van der Heijden AG, Herdegen S, Zlotta AR, Hacek J, Calatrava A, Mannweiler S, Bosschieter J, Ashabere D, Haitel A, Côté JF, El Sheikh S, Lunelli L, Algaba F, Alemany I, Soria F, Runneboom W, Breyer J, Nieuwenhuijzen JA, Llorente C, Molinaro L, Hulsbergen-van de Kaa CA, Evert M, Kiemeney LALM, N'Dow J, Plass K, Čapoun O, Soukup V, Dominguez-Escrig JL, Cohen D, Palou J, Gontero P, Burger M, Zigeuner R, Mostafid AH, Shariat SF, Rouprêt M, Compérat EM, Babjuk M, van Rhijn BWG