Assel M, Sjoberg D, Elders A, Wang X, Huo D, Botchway A, Delfino K, Fan Y, Zhao Z, Koyama T, Hollenbeck B, Qin R, Zahnd W, Zabor EC, Kattan MW, Vickers AJ. Guidelines for reporting of statistics for clinical research in urology. BJU Int. 2019 03; 123(3):401-410.