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Association between long-term exposure to ambient air pollution and COVID-19 severity: a prospective cohort study
Chen Chen, John Wang, Jeff Kwong, JinHee Kim, Aaron van Donkelaar, Randall V. Martin, Perry Hystad, Yushan Su, Eric Lavigne, Megan Kirby-McGregor, Jay S. Kaufman, Tarik Benmarhnia and Hong Chen