ARDS, acute respiratory distress syndrome; BAL, bronchoalveolar lavage; B-ALL, B-cell ALL; CAR, chimeric antigen receptor; CLL, chronic lymphocytic leukemia; CMV, cytomegalovirus; CRS, cytokine release syndrome; HRCT, high-resolution CT of the chest; ICANS, immune effector-cell-associated neurotoxicity syndrome; NK/T-EBV, natural killer cell and Epstein-Barr virus–associated T-cell lymphoproliferation; SARS-CoV-1, severe acute respiratory syndrome coronavirus 1; SCT, stem cell transplantation; WBCs, white blood cells.