[1] Leiden Univ, Med Ctr, Dept Immunohematol & Blood Transfus, NL-2300 RC Leiden, Netherlands
[2] Leiden Univ, Med Ctr, Dept Infect Dis, NL-2300 RC Leiden, Netherlands
[3] Univ Hacettepe, Childrens Hosp, TR-06100 Ankara, Turkey
[4] Fujisaki Inst, Hayashibara Biochem Labs, Okayama, Japan