AUTHOR=Liu Wei , Feng Qixuan , Yuan Xuefeng , Lu Chang , Wang Shuang , Yuan Yadong TITLE=Diagnostic value of lung function tests in long COVID: analysis of positive bronchial provocation test outcomes JOURNAL=Frontiers in Medicine VOLUME=11 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2024.1512658 DOI=10.3389/fmed.2024.1512658 ISSN=2296-858X