Branković, Marija, Igor Jovanović, Tijana Radonjić, Igor Pančevski, Ilija Bukurecki, Marija Dukić, Višeslav Popadić, Slobodan Klašnja, and Marija Zdravković. 2022. “Gastrointestinal Symptoms in COVID-19 Patients”. Vojnosanitetski Pregled 79 (5). https://doi.org/10.2298/VSP210908014B.