Research trends of acupuncture therapy for painful peripheral nervous system diseases from 2004 to 2023: a bibliometric and meta-analysis - Fan, Binke; Xia, Yunfan; Feng, Yuanyuan; Yang, Xilong; Lin, Ping; Fang, Jianqiao; Zhang, Zuyong; Li, Shimin (Frontiers in Neurology, 2025)