Magnetic resonance imaging of mouse islet grafts labeled with novel chitosan-coated superparamagnetic iron oxide nanoparticles. oleh Jyuhn-Huarng Juang, Chia-Rui Shen, Jiun-Jie Wang, Chien-Hung Kuo, Yu-Wen Chien, Hsiao-Yunn Kuo, Fu-Rong Chen, Ming H Chen, Tzu-Chen Yen, Zei-Tsan Tsai