Institution: | 1.Department of Occupational Medicine, First Faculty of Medicine,Charles University in Prague and General University Hospital in Prague,Prague 2,Czech Republic;2.Department of Dialysis,Charles University in Prague and General University Hospital,Prague 2,Czech Republic;3.Department of Internal medicine,Hospital Decin,Decin,Czech Republic;4.Department of Internal Medicine,Hospital Nachod,Nachod,Czech Republic;5.J. Heyrovsky Institute of Physical Chemistry of the AS CRv.v.i.,Prague 8,Czech Republic |