Chronic Obstructive Pulmonary Disease and the Omicron Variant of COVID-19 Prognosis: A Retrospective Cohort Study

Cheuk Cheung Derek Leung; Ellen Lok Man Yu; Yu Hong Chan; Man Ying Ho; Chin Tong Kwok; Hiu Ching Christy Chan; Yiu Cheong Yeung; Cheuk Cheung Derek Leung; Ellen Lok Man Yu; Yu Hong Chan; Man Ying Ho; Chin Tong Kwok; Hiu Ching Christy Chan; Yiu Cheong Yeung

doi:10.7759/cureus.65713

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