ArticleBMJ open2022

Pre-COVID-19 pandemic health-related behaviours in children (2018-2020) and association with being tested for SARS-CoV-2 and testing positive for SARS-CoV-2 (2020-2021): a retrospective cohort study using survey data linked with routine health data in Wales, UK.

Emily Marchant et al.PubMed ↗Full text ↗Publisher ↗

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