Affiliation: | (1) Department of Child and Adolescent Psychiatry, Utrecht University Hospital, P.O. Box 85 500, NL-3508 GA Utrecht, (The Netherlands);(2) Department of Ethology and Socio-ecology, Utrecht State University, P.O. Box 80 086, NL-3508 TB Utrecht, (The Netherlands);(3) Rudolf Magnus Institute, Utrecht State University, Vondellaan 6, NL-3521 GD Utrecht, (The Netherlands) |