Institution: | 1. Division of Paediatric Nephrology, Department of Paediatrics, University Hospital, , Lausanne, Switzerland;2. Division of Biostatistics, Institute of Social and Preventive Medicine, University Hospital of Lausanne, , Lausanne, Switzerland;3. Division of Paediatric Nephrology, Department of Paediatrics, University Hospital, , Geneva, Switzerland;4. Department of Psychology, Health Psychology, University of Lausanne, , Lausanne, Switzerland |