Affiliation: | (1) Hematology-Oncology Unit, First Department of Pediatrics, University of Athens, “Aghia Sophia” Children’s Hospital, Thivon & Levadias Ave., Athens, 11527, Greece;(2) Infectious Disease Unit, First Department of Pediatrics, University of Athens, “Aghia Sophia” Children’s Hospital, Athens, Greece;(3) Department of Microbiology, Medical School, University of Athens, Athens, Greece;(4) Pediatric Intensive Care Unit, “Aghia Sophia” Children’s Hospital, Athens, Greece |