Covid-19: Lockdowns and masks helped reduce transmission, expert group finds
BMJ (Online), 2023-08, Vol.382, p.p1959-1959 [Peer Reviewed Journal]This article is made freely available for personal use in accordance with BMJ's website terms and conditions for the duration of the covid-19 pandemic or until otherwise determined by BMJ. You may download and print the article for any lawful, non-commercial purpose (including text and data mining) provided that all copyright notices and trade marks are retained. https://bmj.com/coronavirus/usage ;ISSN: 1756-1833 ;EISSN: 1756-1833 ;DOI: 10.1136/bmj.p1959
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