1. Division of Clinical Genetics, Department of Laboratory MedicineLund University Lund Sweden
2. Department of Pathology and Clinical GeneticsSahlgrenska University Hospital Gothenburg Sweden
3. Department of HistopathologyRoyal National Orthopaedic Hospital Stanmore UK
4. UCL Cancer Institute London UK
5. Department of Clinical Genetics, Office for Medical Services, Division of Laboratory MedicineLund University Lund Sweden