TNF and B-cell chronic lymphocytic leukemia: Fourteen (23%) of the 62 patients had conditions associated with compromised immune function including CLL (n = 4), non‐Hodgkin's lymphoma (n = 1), mycosis fungoides (n = 1), HIV (n = 1), long‐term prednisone (n = 1), antirejection medications following solid organ transplantation (n = 5), and anti‐TNF‐alpha antibody therapy (n = 1).