Tanja Gottken is a psychologist, psychoanalyst, research associate and head of the local psychotherapy section at the Department of Child and Adolescent Psychiatry, University of Leipzig, Germany. Kai von Klitzing is a professor of child and adolescent psychiatry and director of the Department of Child and Adolescent Psychiatry, University of Leipzig, Germany, and a psychoanalyst for adults, adolescents, and children.