Society for Immunotherapy of Cancer clinical and biomarkers data sharing resource document: Volume II—practical challenges ============================================================================================================================ * Alessandra Cesano * Michael A Cannarile * Sacha Gnjatic * Bruno Gomes * Justin Guinney * Vaios Karanikas * Mohan Karkada * John M Kirkwood * Beatrix Kotlan * Giuseppe V Masucci * Els Meeusen * Anne Monette * Aung Naing * Vésteinn Thorsson * Nicholas Tschernia * Ena Wang * Daniel K Wells * Timothy L Wyant * Sergio Rutella