- Correspondence to Andreas Katsimpris, Chair of Epidemiology, Ludwig-Maximilians-Universität München, UNIKA-T Augsburg, Neusässer Str. 47, Augsburg 86156, Germany;
- Received March 26, 2020
- Revised June 22, 2020
- Accepted July 13, 2020
- First published August 28, 2020.
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