1 Central Laboratory of Immunoanalysis, Faculty Hospital in Pilsen and Faculty of Medicine in Plzen, Charles University in Prague, 300 00 Pilsen, Czech Republic ; Biomedical Center, Faculty of Medicine in Pilsen, Charles University in Prague, 323 00 Pilsen, Czech Republic.
2 Central Laboratory of Immunoanalysis, Faculty Hospital in Pilsen and Faculty of Medicine in Plzen, Charles University in Prague, 300 00 Pilsen, Czech Republic.
3 Clinical Consultants, Inc., Glen Rock, NJ 07452, USA.
4 Hadassah Medical Center, Hebrew University, 911 20 Jerusalem, Israel.
5 First Faculty of Medicine, Charles University in Prague, 121 08 Prague, Czech Republic.