AUTHOR=Xiwen Zhang , Qiyun Feng , Chuqiao Li , Anqi Jiang , Zhenzhen Wu , Qiong Deng , Yu Peng , Chunlin Wang TITLE=The assessment of autonomic nervous function in patients with gastrointestinal malignancies and its relationship with clinical characteristics JOURNAL=Frontiers in Neuroscience VOLUME=19 YEAR=2025 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2025.1542224 DOI=10.3389/fnins.2025.1542224 ISSN=1662-453X