A Nomogram Based on Aspartate Aminotransferase/Alanine Aminotransferase (AST/ALT) Ratio to Predict Prognosis After Surgery in Gastric Cancer Patients oleh Linfang Li MD, Qiuyao Zeng MD, Ning Xue MD, Miantao Wu MD, Yaqing Liang MD, Qingxia Xu MD, Lingmin Feng MD, Shan Xing MD, Shulin Chen MD