1. Pediatric Dermatology Unit, First Department of Pediatrics National and Kapodistrian University of Athens, “Aghia Sophia” Children's Hospital Athens Greece
2. Pediatric Department Kingston Hospital London UK
3. Allergy Department, Second Pediatric Clinic National and Kapodistrian University of Athens Athens Greece
4. Department of Biomathematics School of Medicine, University of Thessaly Larissa Greece
5. The Institute for Clinical Research and Health Policy Studies, Tufts Medical Center Tufts University School of Medicine Boston Massachusetts USA
6. First Department of Pediatrics National and Kapodistrian University of Athens, “Aghia Sophia” Children's Hospital Athens Greece
7. University Research Institute of Maternal and Child Health and Precision Medicine and UNESCO Chair on Adolescent Health Care, National and Kapodistrian University of Athens, “Aghia Sophia” Children's Hospital Athens Greece