The absence of HLA class I expression in non-small cell lung cancer correlates with the tumor tissue structure and the pattern of T cell infiltration. - Perea F; Bernal M; Sánchez-Palencia A; Carretero J; Torres C; Bayarri C; Gómez-Morales M; Garrido F; Ruiz-Cabello F (International journal of cancer, 2017)