1. Center for Prenatal Diagnosis and Human Genetics; Berlin Germany
2. Acomed Statistics; Leipzig Germany
3. Department of Medical and Human Genetics; Charité-Universitätsmedizin Berlin; Berlin Germany
4. Institute of the History, Theory and Ethics of Medicine; University of Ulm; Ulm Germany
5. Centre for Comparative Genomics; Murdoch University; Perth Australia
6. School of Medical Sciences; Edith Cowan University; Perth Australia