Taal, B G; Boot, H; van Heerde, P; de Jong, D; Hart, A A; Burgers, J M (1 de octubre de 1996). «Primary non-Hodgkin lymphoma of the stomach: endoscopic pattern and prognosis in low versus high grade malignancy in relation to the MALT concept.». Gut39 (4): 556-561. doi:10.1136/gut.39.4.556.