L. Iisager, J. . Ahrenfeldt, A. K. Keller, T. K. Nielsen, N. Fristrup, and I. Lyskjær, “KIDNEY-PAGER: analysis of circulating tumor DNA as a biomarker in renal cancer – an observational trial. Study protocol”, AO, vol. 63, no. 1, pp. 51–55, Feb. 2024.