1. Folkhälsan Research Center Helsinki Finland
2. Division of Human Genetics, Department of Pediatrics, Inselspital University of Bern Bern Switzerland
3. Stem Cells and Metabolism Research Program, Faculty of Medicine University of Helsinki Helsinki Finland
4. Human Genetics, Faculty of Medicine and Health Sciences University of Oldenburg Oldenburg Germany
5. Department of Medical Genetics Poznan University of Medical Sciences Poznan Poland
6. Centers for Medical Genetics GENESIS Poznan Poland
7. Department of Genetics Polish Mother's Memorial Hospital Research Institute Poland
8. CeGaT GmbH—Center for Genomics and Transcriptomics Tübingen Germany
9. Institute of Human Genetics University of Leipzig Medical Center Leipzig Germany