AUTHOR=Zeng Qiuxuan , Lin Xiaohong , Chen Wenli , Fong Daniel Yee Tak , Li Junxin , Li Jiaying TITLE=Effectiveness of a harmonica-integrated, tele-supervised home-based pulmonary rehabilitation program on lung function and comprehensive health outcomes in patients with chronic obstructive pulmonary disease: a randomized controlled trial protocol JOURNAL=Frontiers in Public Health VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1541866 DOI=10.3389/fpubh.2025.1541866 ISSN=2296-2565