| Affiliation: | 1. Department of Pediatrics, Division of Hematology, Oncology and Stem Cell Transplantation, Ann & Robert H. Lurie Children's Hospital of Chicago, Feinberg School of Medicine at Northwestern University, Chicago, Illinois, United States;2. Department of Pediatrics, Division of Hematology and Oncology, Faculty of Medicine at Zagazig University, Zagazig, Egypt;3. Dermatologic Surgery Unit, Department of Dermatology, Venereology and Allergology, Ruhr‐University Bochum, Bochum;4. Department of Plastic Surgery, St. Josef Hospital, Catholic Clinics of the Ruhr Peninsula, Essen, Germany |
