MS4A1 and head and neck squamous cell carcinoma: Yet, the single gene MS4A1 and multigene TIL-B levels appeared to be consistently prognostic for HNSCC patient outcomes, consistent with the known abundances of activated B-cell, antigen-presenting B-cell, and memory B-cells in HNSCC patient tumors, potentially supportive of the antitumor activity of TIL-B as recently reported30.