Ekinci, Omer, Ali Dogan, Sinan Demircioglu, Ergin Turgut, and Cengiz Demir. 2018. “Secondary Primary Malignancy Presence and Related Factors in Chronic Lymphocytic Leukemia”. Medical Science and Discovery 5 (1):106-9. https://medscidiscovery.com/index.php/msd/article/view/206.