1 Clinical Genetics Unit, Service of Paediatrics, University Hospital 'Lozano Blesa' Medical School, University of Zaragoza, CIBERER-GCV and IIS-Aragón, Zaragoza, Spain.
2 Unit of Clinical Genetics and Functional Genomics, Departments of Pharmacology-Physiology and Paediatrics Medical School, University of Zaragoza, CIBERER-GCV and IIS-Aragón, Zaragoza, Spain.
3 Department of Paediatrics, Hospital Pablo Tobón Uribe, Medellín, Colombia.
4 Department of Paediatrics, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
5 Department of Paediatrics, Academic Medical Centre, Amsterdam, The Netherlands.
6 Sektion für Funktionelle Genetik am Institut für Humangenetik, Universität zu Lübeck, Lübeck, Germany.
7 Division of Human Genetics, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
8 Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche, Pisa, Italy.
9 Pediatric Genetic Clinic Unit, MBBM Foundation University of Milano Bicocca, San Gerardo Hospital, Monza, Italy.
10 MRC Human Genetics Unit - MRC IGMM, University of Edinburgh, Edinburgh, UK.