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2. SEER “Stat Fact Sheets: Chronic Lymphocytic Leukemia,” Surveillance Epidemiology and End Results http://seer.cancer.gov/statfacts/html/clyl.html
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4. SEER “Stat Fact Sheets: Non-Hodgkin Lymphoma,” Surveillance Epidemiology and End Results http://seer.cancer.gov/statfacts/html/nhl.html#
5. ACS “Detailed Guide: ‘What Is Non-Hodgkin Lymphoma?’,” American Cancer Society http://www.cancer.org/Cancer/Non-HodgkinLymphoma/DetailedGuide/non-hodgkin-lymphoma-types-of-non-hodgkin-lymphoma