Intratubular light chain amyloidosis: a comprehensive analysis of disease spectrum and clinicopathological characteristics - Xiaoyu Wang; Yuxuan Yuan; Dan Zhou; Zhengyun Zhu; Yujie Wang; Feng Xu; Xiaodong Zhu; Mingchao Zhang; Fan Yang; Shaoshan Liang; Caihong Zeng (Clinical Kidney Journal, 2026)