1. Muller-Hermalink HK, et al. Chronic lymphocytic leukaemia/small lymphocytic lymphoma. In : Swerdlow SH, et al. Editors. World Health Organization classi-fication of tumors. Lyon: IARC Press; 2008. p.180-182.
2. Surveillance, Epidemiology and End Results (SEER) Program. Bethesda, MD2011 [updated November 10, 2011]; Available from: http://seer.cancer.gov/.