1 Nina Schnyder, MSc, University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern; Radoslaw Panczak, PhD, Institute of Social and Preventive Medicine, University of Bern; Nicola Groth, Dipl Psych, Frauke Schultze-Lutter, PhD, University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Switzerland. Email: nina.schnyder@kjp.unibe.ch.