Design, Fabrication and Test of a Lightweight 3.0 T Cryogen-Free MRI System With GM Refrigerator for Imaging Small Animals and Materials. - Jinhao Liu; Miutian Wang; Youheng Sun; Kaisheng Lin; Wenchen Wang; Yaohui Wang 002; Weimin Wang; Qiuliang Wang; Feng Liu 005 (IEEE Trans. Biomed. Eng., 2025)