1 Department of Diagnostics, Jagiellonian University Medical College, Krakow, Poland mbmkapus@cyf-kr.edu.pl.
2 Department of Diagnostics, Jagiellonian University Medical College, Krakow, Poland.
3 Department of Metabolic Diseases, Jagiellonian University Medical College, Krakow, Poland Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA.