Development and external validation of a pathological nodal staging score for patients with clear cell renal cell carcinoma

Malte Rieken, Stephen A. Boorjian, Luis A. Kluth, Umberto Capitanio, Alberto Briganti, R. Houston Thompson, Bradley C. Leibovich, Laura Maria Krabbe, Vitaly Margulis, Jay D. Raman, Mikhail Regelman, Pierre I. Karakiewicz, Morgan Rouprêt, Mohammad Abufaraj, Beat Foerster, Mithat Gönen, Shahrokh F. Shariat