Application of ultrasonography in predicting the biological risk of gastrointestinal stromal tumors. - Guo, Jing-Jing; Tang, Xiu-Bin; Qian, Qing-Fu; Zhuo, Min-Ling; Lin, Li-Wu; Xue, En-Sheng; Chen, Zhi-Kui (Scandinavian Journal of Gastroenterology, 2022)