Prehepatic portal hypertension produces increased mast cell density in the small bowel and in mesenteric lymph nodes in the rat - Prieto, I; Aller, MA; Santamaría, L; Nava, MP; Madero, R; Pérez-Robledo, JP; Arias, J (Journal of Gastroenterology and Hepatology (Australia), 2005)