Liu, Shuai, ChongLei Ren, and Yao Wang. “Primary Lymphoma of the Heart: A Case Report of Surgical Treatment and Review of the Literature”. The Heart Surgery Forum 22, no. 3 (May 22, 2019): E225-E228. Accessed September 19, 2020. https://journal.hsforum.com/index.php/HSF/article/view/2217.