Treatment-free survival over extended follow-up of patients with advanced melanoma treated with immune checkpoint inhibitors in CheckMate 067 oleh James Larkin, Jedd Wolchok, David F McDermott, Michael A Postow, Ahmad A Tarhini, Michael B Atkins, F Stephen Hodi, Corey Ritchings, Brian Stwalley, Andriy Moshyk, Meredith M Regan, Charlene M Mantia, Lillian Werner, Sandra Re, Wim van Dijck