Acupuncture-related therapies for opioid-induced constipation in patients with cancer: a systematic review and network meta-analysis - Xinkun Liu; Huaqiang Shao; Jiayue Yang; He Chen; Ruimin Jiao; Guangxian Yu; Jiaxiang Shi; Wenquan Su; E. Zhang; Yiqi Liang; Zhishun Liu; Weiming Wang (Frontiers in Medicine, 2026)