Treatment-free survival and partitioned survival analysis of patients with advanced renal cell carcinoma treated with nivolumab plus ipilimumab versus sunitinib: 5-year update of CheckMate 214 ================================================================================================================================================================================================ * Charlene M Mantia * Opeyemi A Jegede * Elizabeth R Plimack * Thomas Powles * Robert J Motzer * Nizar M Tannir * Chung-Han Lee * Yoshihiko Tomita * Martin H Voss * Toni K Choueiri * Brian I Rini * Hans J Hammers * Bernard Escudier * Laurence Albigès * Lisa Rosenblatt * Michael B Atkins * Meredith M Regan * David F McDermott