[1] Charles Univ Prague, Dept Paediat Haematol & Oncol, Sch Med 2, Motol Univ Hosp, CZ-15006 Prague 5, Czech Republic
[2] Charles Univ Prague, Dept Ophthalmol Children & Adults, Sch Med 2, Motol Univ Hosp, CZ-15006 Prague 5, Czech Republic
[3] Charles Univ Prague, Dept Paediat, Sch Med 2, Motol Univ Hosp, CZ-15006 Prague 5, Czech Republic
[4] Charles Univ Prague, Dept Microbiol, Sch Med 2, Motol Univ Hosp, CZ-15006 Prague 5, Czech Republic
[5] Univ Hosp Brno, Ctr Mol Biol & Gene Therapy, Dept Internal Med, Brno, Czech Republic
[6] Masaryk Univ, Brno, Czech Republic