title: Commentary.
authors.affiliation: Department of Psychiatry and Psychology, Division Child and Adolescent Psychiatry, Maastricht University Medical Centre+, Maastricht, Netherlands.
authors.forename: Jurjen J
authors.initials: JJ
authors.lastname: van Zwieten
authors.affiliation: Department of Psychiatry and Psychology, Division Child and Adolescent Psychiatry, Maastricht University Medical Centre+, Maastricht, Netherlands ; Mutsaersstichting, Venlo, Sittard, Netherlands ; Koraal Groep, Sittard, Netherlands.
authors.forename: Jan N M
authors.initials: JN
authors.lastname: Schieveld