Affiliation: | 1. Department of Cardiothoracic and Vascular Surgery, Klinikum Klagenfurt am W?rthersee, , Klagenfurt, Austria;2. Department of Hospital Epidemiology and Infection Control, Klinikum Klagenfurt am W?rthersee, , Klagenfurt, Austria;3. Department of Internal Medicine, Klinikum Klagenfurt am W?rthersee, , Klagenfurt, Austria;4. Department of Hospital Pharmacy, Klinikum Klagenfurt am W?rthersee, , Klagenfurt, Austria |