AUTHOR=Du Wei , Xu Hong , Chang Yunqi , Feng Biying , Wang Qiong , Li Weifeng TITLE=Impact of obstructive sleep apnea on inpatient outcomes of COVID-19: a propensity-score matching analysis of the US Nationwide Inpatient Sample 2020 JOURNAL=Frontiers in Medicine VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1472176 DOI=10.3389/fmed.2025.1472176 ISSN=2296-858X