AUTHOR=Zhang Yuting , Cao Ziqiong , Ye Junlan , Dai Guoliang , Qin Shan , Wang Xiaoqiu , Wu Wenzhong , Liu Chengyong TITLE=Mechanistic study of electroacupuncture in the treatment of insomnia: study protocol for a clinical trial of serum metabolomics based on UPLC-Q/TOF-MS and UPLC-QQQ-MS/MS JOURNAL=Frontiers in Psychiatry VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2025.1499361 DOI=10.3389/fpsyt.2025.1499361 ISSN=1664-0640