Hasan, K. M. “Clinical Aspects, Immunophenotypic Analysis and Survival Rate of Chronic Lymphocytic Leukaemia Patients in Erbil City, Iraq”. Sultan Qaboos University Medical Journal, vol. 18, no. 4, Mar. 2019, pp. e461-467, doi:10.18295/squmj.2018.18.04.006.