1. Institute of Medical Biochemistry and Laboratory Diagnostics , 1st Faculty of Medicine , Charles University in Prague and General University Hospital in Prague , Prague , Czech Republic
2. Department of Anesthesiology and Intensive Care , 1st Faculty of Medicine , Charles University in Prague and General University Hospital in Prague , Prague , Czech Republic
3. Department of Anesthesiology , University of Pittsburgh School of Medicine, UPMC Presbyterian Hospital , 200 Lothrop St. Suite C220 , Pittsburgh, PA 15213 , USA