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    Impact of mandatory masking amid the COVID-19 pandemic on outdoor smoking: an interrupted time-series analysis of a 33-month unobtrusive observational study

    Impact of mandatory masking amid the COVID-19 pandemic on outdoor smoking: an interrupted time-series analysis of a 33-month unobtrusive observational study by Yuying Sun, Yuying Sun, Yongda Socrates Wu, Yee Tak Derek Cheung, Man Ping Wang, Jianjiu Chen, Jianjiu Chen, Lok Tung Leung, Xiaoyu Zhang, Kin Yeung Chak, Kin Yeung Chak, Tai Hing Lam, Sai Yin Ho

    Published 2023
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