Spatially resolved proteomic profiling identifies tumor cell CD44 as a biomarker associated with sensitivity to PD-1 axis blockade in advanced non-small-cell lung cancer ========================================================================================================================================================================= * Myrto K Moutafi * Magdalena Molero * Sandra Martinez Morilla * Javier Baena * Ioannis A Vathiotis * Niki Gavrielatou * Laura Castro-Labrador * Gorka Ruiz de Garibay * Vera Adradas * Daniel Orive * Karmele Valencia * Alfonso Calvo * Luis M Montuenga * S Ponce Aix * Kurt A Schalper * Roy S Herbst * Luis Paz-Ares * David L Rimm * Jon Zugazagoitia