Self-Assessment of Having COVID-19 With the Corona Check mHealth App. - Felix Beierle; Johannes Allgaier; Carolin Stupp; Thomas Keil; Winfried Schlee; Johannes Schobel; Carsten Vogel; Fabian Haug; Julian Haug; Marc Holfelder; Berthold Langguth; Jana Langguth; et al. (IEEE J. Biomed. Health Informatics, 2023)