TY - JOUR T1 - Study on the effect of Portulaca oleracea L. extract on chronic ulcerative colitis in rats induced by allogeneic antigen and acetic acid JO - Acta Cirúrgica Brasileira A1 - Wu, Yan A1 - Zhao, Fang A1 - Zhao, Juan A1 - Ruan, Rong-Yao A1 - Wu, Fei-Yan A1 - Xu, Yusheng SN - 0102-8650 UL - 10.1590/acb412126 VL - 41 Y1 - 2026 PB - Brasil ER -