1 Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Krakow, Poland; The University Hospital in Krakow, Krakow, Poland.
2 The University Hospital in Krakow, Krakow, Poland; 2nd Department of Surgery, Jagiellonian University Medical College, Krakow, Poland.
3 Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Krakow, Poland; The University Hospital in Krakow, Krakow, Poland. Electronic address: jerzy.gasowski@uj.edu.pl.