1.
Medina-Marroquín R, González-Godínez I, Maldonado-López C de J, Calzada-Rascón AC. Upper digestive tract bleeding as a clinical presentation of non-Hodgkin’s lymphoma. Rev Med Inst Mex Seguro Soc. 2023;61(5):685-90. Accessed November 13, 2026. https://revistamedica.imss.gob.mx/index.php/revista_medica/article/view/4869