Concurrent presentation of proliferative glomerulonephritis with monoclonal immunoglobulin deposits and light chain proximal tubulopathy: a case report and review of the literature - Zhang, Jingdong; Liu, Yang; Jin, Fengyan; Li, Jia; Wang, Hui; Ma, Fuzhe; Jia, Ye; Yu, Jinyu; Wu, Shan; Fu, Shaojie; Xu, Zhonggao; Wu, Hao (Frontiers in Medicine, 2025)