Other groups have attempted to stratify tumors by the presence of tumor infiltrating lymphocytes and PD-L1 and have used these parameters to create 4 tumor types—i.e, TIL+PD-L1+, TIL−PD-L1+, TIL+PD-L1−, and TIL−PD-L1− [45, 46]. Here, CD274 is linked to neoplasm.