1 Department of Medicine III-Nephrology, Hypertension, Transplantation, Rheumatology, Geriatrics, Ordensklinikum Linz-Elisabethinen Hospital, Linz, Austria.
2 Department of Medicine III-Nephrology, Hypertension, Transplantation, Rheumatology, Geriatrics, Ordensklinikum Linz-Elisabethinen Hospital, Linz, Austria; Institute of Clinical Biometrics, Center for Medical Statistics, Informatics and Intelligent Systems (CEMSIIS), Medical University Vienna, Austria.
3 Institute for Hygiene, Microbiology and Tropical Medicine, Ordensklinikum Linz-Elisabethinen Hospital, Linz, Austria.
4 Department of Medicine III-Nephrology, Hypertension, Transplantation, Rheumatology, Geriatrics, Ordensklinikum Linz-Elisabethinen Hospital, Linz, Austria. Electronic address: daniel.cejka@ordensklinikum.at.