Impact of Surgical Margin Status on Survival in Gastric Cancer: A Systematic Review and Meta-Analysis oleh Zhiyuan Jiang MD, Chunyu Liu MD, Zhaolun Cai MD, Chaoyong Shen MD, Yuan Yin MD, Xiaonan Yin MD, Zhou Zhao MD, Mingchun Mu MD, Yiqiong Yin BS, Bo Zhang MD, PhD