Facilitating Study and Item Level Browsing for Clinical and Epidemiological COVID-19 Studies. - Carsten Oliver Schmidt; Johannes Darms; Aliaksandra Shutsko; Matthias Löbe; Rajini Nagrani; Bastian Seifert; Birte Lindstädt; Martin Golebiewski; Sofiya Koleva; Theresa Bender; Christian Robert Bauer; Ulrich Sax; et al. (MIE, 2021)