1. Jordan University and Hospital, Amman, Jordan
2. Prince Hamzah Hospital and AlBasheer Hospital, Amman, Jordan
3. King Hussein Cancer Centre, Amman, Jordan
4. Department of Pediatrics, Faculty of Medicine, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan
5. Private Sector, Amman, Jordan
6. Paediatric Department, Istiklal Hospital, Amman, Jordan
7. Jordan University of Science and Technology, Irbid, Jordan