HLA-G and infection: This score is based on Eastern Cooperative Oncology Group (ECOG) performance status and serum β2-microglobulin, lactate dehydrogenase, and hemoglobin levels to define high-risk and low-risk groups showing significantly different rates of grade ≥ 3 infection (24.0% vs. 7.0%, respectively; p < 0.001) in the first 4 months.