[1] Charles Univ Prague, Fac Med, Plzen, Czech Republic
[2] Charles Univ Prague, Fac Med, Hradec Kralove, Czech Republic
[3] Univ Hosp, Hradec Kralove, Czech Republic
[4] Univ Hlth Network, Toronto, ON, Canada
[5] Royal Devon & Exeter Hosp, Exeter EX2 5DW, Devon, England
[6] Univ Helsinki, Haartman Inst, Helsinki, Finland
[7] Private Biopt Lab, Plzen, Czech Republic