SARS-CoV-2 transmission in students of public schools of Catalonia (Spain) after a month of reopening.
PLoS One. 2021 May 12;16(5):e0251593. doi: 10.1371/journal.pone.0251593. eCollection 2021.
PLoS One. 2021.
PMID: 33979410
Free PMC article.