Fujita A, Tajika M, Tanaka T, Ishihara M, Hirayama Y, Mizuno N, Hara K, Hijioka S, Imaoka H, Yoshida T, Okuno N, Hieda N, Hirayama T, Shibuya H, Kondo H, Suzuki H, Toriyama K, Yatabe Y, Yamao K, Niwa Y. A case of API2-MALT1-positive gastric MALT lymphoma with concomitant diffuse large B-cell lymphoma. Nagoya J Med Sci. 2017 Feb;79(2):251–7. PMID: 28626260; PMCID: PMC5472550.