Department Of Expertise 1

1. Correction to: SARS-CoV-2 PCR-positive and PCR-negative cases of pneumonia admitted to the hospital during the peak of COVID-19 pandemic: analysis of in-hospital and posthospital mortality (BMC Infectious Diseases, (2021), 21, 1, (458), 10.1186/s12879-021-06154-z)
2. SARS-CoV-2 PCR-positive and PCR-negative cases of pneumonia admitted to the hospital during the peak of COVID-19 pandemic: analysis of in-hospital and post-hospital mortality
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