Evaluation of cerebrospinal fluid treponema pallidum particle agglutination assay titer for neurosyphilis diagnosis among HIV-negative syphilis patients - Shi, Mei; Long, Fuquan; Zou, Danyang; Gu, Xin; Ni, Liyan; Cheng, Yuanyuan; Qi, Tengfei; Zhao, Wei; Zhu, Lin; Guan, Zhifang; Zhou, Pingyu (Frontiers in Immunology, 2025)