A. Bex, A. A. M. Van der Veldt, C. Blank, M. R. Meijerink, E. Boven, and J. B. A. G. Haanen, “Progression of a caval vein thrombus in two patients with primary renal cell carcinoma on pretreatment with sunitinib”, AO, vol. 49, no. 4, pp. 520–523, Jan. 2010.