AUTHOR=Wu Shao-long , Wang Kun , Yang Xin , Liu Ning , Zou Wen-xin , Li Xiao-wei , Huang Dan-hua , Yu Tian-hao TITLE=Impact of zero-markup consumable policy and national procurement of coronary stents on hospitalization expenses: an interrupted time series analysis JOURNAL=Frontiers in Public Health VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1364116 DOI=10.3389/fpubh.2025.1364116 ISSN=2296-2565