Gender differences in the frequency of gastrointestinal symptoms and olfactory or taste disorders among 1,942 non-hospitalized patients with COVID-19. pol arch intern med • June 4, 2020
Clinical characteristics and short-term outcomes of coronavirus disease 2019: retrospective, single-center experience of designated hospital in Poland. pol arch intern med • May 19, 2020
Retrospective study of risk factors for severe SARS-Cov-2 infections in hospitalized adult patients. pol arch intern med • April 25, 2020