AUTHOR=Yin Weijuan , Fang Fang , Zhang Yan , Xi Lijuan TITLE=Timing of transcutaneous acupoint electrical stimulation for postoperative recovery in geriatric patients with gastrointestinal tumors: study protocol for a randomized controlled trial JOURNAL=Frontiers in Medicine VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1497647 DOI=10.3389/fmed.2025.1497647 ISSN=2296-858X