Baseline metabolic tumor volume as a strong predictive and prognostic biomarker in patients with non-small cell lung cancer treated with PD1 inhibitors: a prospective study ============================================================================================================================================================================ * David Chardin * Marie Paquet * Renaud Schiappa * Jacques Darcourt * Caroline Bailleux * Michel Poudenx * Aurélie Sciazza * Marius Ilie * Jonathan Benzaquen * Nicolas Martin * Josiane Otto * Olivier Humbert