Behavioral features in Prader-Willi syndrome (PWS) : consensus paper from the International PWS Clinical Trial Consortium - Schwartz, Lauren (University of Washington School of Medicine. Department of Rehabilitation Medicine) ; Caixàs i Pedragós, Assumpta (Universitat Autònoma de Barcelona. Departament de Medicina) ; Dimitropoulos, Anastasia (Case Western Reserve University. Psychological Sciences) ; Dykens, Elisabeth (Vanderbilt University. Vanderbilt Kennedy Center for Research on Human Development) ; Duis, Jessica (University of Colorado Anschutz Medical Campus. Section of Genetics & Inherited Metabolic Diseases, Children's Hospital Colorado) ; Einfeld, Stewart (University of Sydney. Faculty of Medicine and Health) ; Gallagher, Louise (St. James's Hospital ( Dublín, Irlanda)) ; Holland, Anthony (University of Cambridge. Department of Psychiatry, Cambridge Intellectual and Developmental Disabilities Research Group) ; Rice, Lauren (The University of Sydney, Faculty of Medicine and Health. Brain and Mind Centre) ; Roof, Elizabeth (Vanderbilt University. Department of Psychology and Human Development) ; Salehi, Parisa (University of Washington. Division of Endocrinology and Diabetes, Seattle Children's) ; Strong, Theresa (University of Alabama at Birmingham. Department of Genetics) ; Taylor, Bonnie (Albert Einstein College of Medicine. Department of Psychiatry and Behavioral Sciences) ; Woodcock, Kate (University of Birmingham. Centre for Applied Psychology, School of Psychology)