1. Department of Clinical Genetics; University and Regional Laboratories, Skåne University Hospital, Lund University; Sweden
2. Department of Pathology; University and Regional Laboratories, Skåne University Hospital; Lund Sweden
3. Department of Orthopedics; Skåne University Hospital; Lund Sweden
4. Department of Pediatric Oncology; Skåne University Hospital; Lund Sweden
5. Department of Pathology; Brigham and Women's Hospital, Harvard Medical School; Boston MA USA