Case Report: A refractory unusual tetrad of overlap syndrome involving rheumatoid arthritis, Sjögren’s syndrome, autoimmune hepatitis, and type 1 renal tubular acidosis, successfully treated with a BLyS/APRIL dual inhibitor - Wang, Wenjing; Ma, Xin; Zhang, Bei; Zhang, Zhibo; Wu, Xinfeng; Jiang, Hongwei; Shi, Xiaofei (Frontiers in Immunology, 2025)