Prospective comparison of [68Ga]Ga-FAPI-04 PET/CT and salivary gland scintigraphy for the diagnosis of primary Sjögren's syndrome. - Cheng, Ke; Xu, Tingting; Li, Zhuoyuan; Liu, Guangfu; Sun, Rui; Shu, Qingxue; Chen, Yue (EJNMMI Research, 2026)