1. Division of Development and Growth, Department of Pediatrics University of Geneva Geneva Switzerland
2. Sensorimotor, Affective and Social Development Laboratory, Faculty of Psychology and Educational Sciences University of Geneva Geneva Switzerland
3. Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) Lausanne Switzerland
4. Clinic of Neonatology, Department of Women Mother Child University Center Hospital and University of Lausanne Lausanne Switzerland
5. Follow Up Unit, Department of Women Mother Child University Center Hospital and University of Lausanne Lausanne Switzerland
6. Institute of Mathematics, Ecole Polytechnique Fédérale de Lausanne (EPFL) Lausanne Switzerland