1 School of Social and Behavioral Health Sciences, Barbara Knudson Chair in Family Policy, Oregon State University, Corvallis, OR, USA. Electronic address: david.rothwell@oregonstate.edu.
2 Child and Adolescent Psychiatry/Psychotherapy, Chair on Child Maltreatment Epidemiology and Trends in Child Protection, University of Ulm, Steinhövelstr. 5, 89079 Ulm, Germany; School of Social Work, Lucerne University of Applied Sciences and Arts, Werftestr. 1, 6003 Luzern, Switzerland. Electronic address: andreas.jud@uniklinik-ulm.de.