Because the risk of recurrence is higher in small intestinal GISTs compared with gastric GISTs [1, 2] and because all NF1-GISTs in this study were located in the small intestine, we further examined RFS and OS in NF1-GIST and non-NF1 patients with small intestinal GISTs (Supplemental Table 1). The gene discussed is NF1; the disease is gastrointestinal stromal tumor.