1. University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University Bochum
2. Department of Clinical Pharmacy, Saarland University, Saarbruecken
3. Department of Child and Adolescent Psychiatry, Saarland University Hospital, Homburg
4. Medical Association, Westfalen-Lippe, Muenster
5. School of Education and Psychology, Siegen University
6. Department of General Pediatrics and Neonatology, Saarland University Hospital, Homburg