Introduction . With the widespread SARS-Cov-2 infections in the beginning of 2020, COVID-19 appeared as an outstanding challenge for health-care worldwide, which was particularly reflected in the numbers of hospitalized patients and mortality attributed to the SARS-CoV-2 infection1 , 2. COVID-19 exerted considerable stress on medical capacity (e.g., hospital beds and medical staff3 , 4, requiring a sophisticated patient management that included optimal allocation to the a...