Utility of noncontrast MRI in the detection and risk grading of gastrointestinal stromal tumor: a comparison with contrast-enhanced CT - Zhou, Ziling; Lu, Jingyu; Morelli, John N.; Hu, Daoyu; Li, Zhen; Xiao, Peng; Hu, Xuemei; Shen, Yaqi (Quantitative Imaging in Medicine and Surgery; Vol 11, No 6 (June 01, 2021): Quantitative Imaging in Medicine and Surgery, 2021)