NCT03188796
- Conditions
- Avitaminosis, COVID-19, Coronaviridae Infections, +20 more
- Locations
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- LKH Enzenbach Enzenbach, Austria
- LKH Feldbach Feldbach, Austria
- Medical University of Graz Graz, Austria
- Klinikum am Wörthersee Klagenfurt, Austria