Karttunen, Eemil, et al. “Incidence, Mortality and Relative Survival of Patients With Cancer of the Bladder and Upper Urothelial Tract in the Nordic Countries Between 1990 and 2019”. Scandinavian Journal of Urology, vol. 57, no. 1-6, Nov. 2023, pp. 15-21, doi:10.1080/21681805.2022.2138965.