1 Department of Child and Adolescent Psychiatry and Psychotherapy, University Medical Center, Georg-August University Goettingen, Germany; iDN - interdisciplinary Developmental Neuroscience, Department of Phoniatrics, Medical University of Graz, Austria. Electronic address: peter.marschik@med.uni-goettingen.de.
2 iDN - interdisciplinary Developmental Neuroscience, Department of Phoniatrics, Medical University of Graz, Austria.