The predictive score given by clinical model could be calculated by this formula: clinscore = (4*tumor size)+[(25 for didn’t receive regular adjuvant therapy) or (0 for received regular adjuvant therapy)]+[(0 for duodenum) or (13 for stomach) or (22 for small intestine) or (31 for colorectum) or (100 for EGIST)] + [(0 for ki67 positive level between 5% to 10%) or (24 for ki67 positive level < 5%) or (54 for ki67 positive level > 10%)] + [(0 for mitosis number < 5/50HPFs) or (27 for mitosis number > 5/50HPFs) or (58 for mitosis number unknown)]. Here, MKI67 is linked to neoplasm.