Puckrin, R., and D. A. Stewart. “Controversies and Current Practices in CNS Relapse of Diffuse Large B-Cell Lymphoma”. Canadian Hematology Today, vol. 2, no. 1, Mar. 2022, pp. 11–14, http://canadianhematologytoday.com/cht/article/view/2-1-2-puckrin_et_al.