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. 2022 Jan 17;2022(1):CD015029. doi: 10.1002/14651858.CD015029

Liu 2021.

Notes Aims: a retrospective cohort study based on a crowdsourcing data set from the National Education Association (NEA) of reopened K‐12 public schools in the US to assess the spread of COVID‐19 cases among the 3 reopening models (remote, hybrid, and in person) at the school district level.