1. Department of Clinical Biochemistry, University Hospital of Lyon , 69002 Lyon , France
2. Department of Pediatric Surgery, University Hospital of Lyon , 69002 Lyon , France
3. Faculty of Medicine of Lyon-Sud, Claude Bernard Lyon 1 University , 69100 Villeurbanne , France
4. Department of Pathology, University Hospital of Lyon , 69002 Lyon , France
5. Department of Medical Genetics, University Hospital of Lyon , 69002 Lyon , France
6. Department of Biostatistics, University Hospital of Lyon , 69002 Lyon , France