[1] Charles Univ Prague, Dept Organ & Nucl Chem, Prague 12843 2, Czech Republic
[2] Palacky Univ, Fac Med, Expt Med Lab, Dept Pediat, Olomouc 77520, Czech Republic
[3] Palacky Univ, Fac Med, Expt Med Lab, Dept Oncol, Olomouc 77520, Czech Republic
[4] Fac Hosp Olomouc, Olomouc 77520, Czech Republic
[5] Acad Sci Czech Republ, Inst Organ Chem & Biochem, CR-16610 Prague 6, Czech Republic