Factors associated with COVID-19 among hospitalized patients with severe acute respiratory infections in Serbia, 2022–2023: A test negative case-control study - Maja Stosic; Dragana Plavsa; Verica Jovanovic; Marko Veljkovic; Dragan Babic; Aleksandra Knezevic; Vladan Saponjic; Dragana Dimitrijevic; Miljan Rancic; Marija Milic; Tatjana Adzic-Vukicevic (PLoS ONE, 2024)