Impact of COVID-19 pandemic on the etiology and characteristics of community-acquired pneumonia among children requiring bronchoalveolar lavage in northern China https://www.medrxiv.org/content/10.1101/2023.03.02.23286686
Impact of COVID-19 pandemic on the etiology and characteristics of community-acquired pneumonia among children requiring bronchoalveolar lavage in northern China https://www.medrxiv.org/content/10.1101/2023.03.02.23286686