Author(s) affiliations:Maciej T. Malecki1, Jan Skupien1, Tomasz Klupa1, Antonina Naskalska1, Sylwia Gorczynska-Kosiorz2, Dariusz K. Moczulski2, Jacek Sieradzki1
1Department of Metabolic Diseases, Jagiellonian University, Medical College, Krakow, Poland.
2Department of Internal Medicine, Diabetology and Nephrology, Silesian School of Medicine, Zabrze, Poland.