1. Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon
2. Department of Pediatrics and Adolescent Medicine, American University of Beirut Medical Center, Beirut, Lebanon
3. Department of Nursing and Health Science, Fulda University of Applied Sciences, Fulda, Germany
4. Centre for Applied Health Science, Leuphana University Lueneburg, Lueneburg, Germany