1. Morrison VA. The infectious complications of chronic lymphocytic leukemia Semin Oncol 1998; 25: 98–106.
2. Chapel HM, Bunch C. Mechanisms of infection in chronic lymphocytic leukemia. Semin Hematol 1987; 24: 291–296.
3. Morrison VA, Hibbs JR, Janoff ED. Systemic and mucosal immunoglobulin levels and risk of infection in patients with chronic lymphocytic leukemia and multiple myeloma. Blood 1996; 88:S240a.
4. Twomey JT. Infections complicating multiple myeloma and chronic lymphocytic leukemia. Arch Intern Med 1973; 132: 562–565.
5. Byrd JC, Hargis JB, Kester KE, et al. Opportunistic pulmonary infections with fludarabine in previously treated patients with low-grade lymphoid malignancies: a role for Pneumocystis carinii pneumonia prophylaxis. Am J Hematol 1995; 49: 135–142.