1. Department of Genetics, Cell- and Immunobiology, Semmelweis University, H-1089 Budapest, Nagyvárad tér 4, Hungary
2. Second Department of Pediatrics, Semmelweis University, H-1094 Budapest, Tűzoltó utca 7–9, Hungary
3. Central Laboratory, Heim Pal Children Hospital, H-1089 Budapest, Üllői út 86, Hungary