1. Howlader N, Noone AM, Krapcho M, Miller D, Bishop K, Altekruse SF, et al., editors. SEER cancer statistics review, 1975–2013. Bethesda: National Cancer Institute; 2016. https://seer.cancer.gov/statfacts/html/clyl.html .
2. Lifetime risk estimates calculated by the Statistical Information Team at Cancer Research UK. Based on data provided by the Office of National Statistics, ISD Scotland, the Welsh Cancer Intelligence and Surveillance Unit and the Northern Ireland Cancer Registry, on request. http://www.cancerresearchuk.org/health-professional/cancer-statistics/statistics-by-cancer-type/leukaemia-cll/incidence .
3. Yang SM, Li JY, Gale RP, Huang XJ. The mystery of chronic lymphocytic leukemia (CLL): why is it absent in Asians and what does this tell us about etiology, pathogenesis and biology? Blood Rev. 2015;29:205–13.
4. Liang XS, Caporaso N, McMaster ML, Ng D, Landgren O, Yeager M, et al. Common genetic variants in candidate genes and risk of familial lymphoid malignancies. Br J Haematol. 2009;146:418–23.
5. Cerhan JR, Slager SL. Familial predisposition and genetic risk factors for lymphoma. Blood. 2015;126:2265–73.