1. University of Bergen and Haukeland University Hospital, Bergen, Norway (P.E.L., E.O.B., L.M., R.C., S.B., C.E., L.B., H.B.S., S.K.)
2. Oslo University Hospital, Oslo, Norway (M.B., A.D.)
3. Haukeland University Hospital, Bergen, Norway (H.H., R.K.)
4. Centre National de Recherche en Génomique Humaine, Evry, France (C.D., F.B., J.T.)
5. Oslo University Hospital and University of Oslo, Oslo, Norway (U.A., B.D.)
6. University of Manchester, St. Mary's Hospital, and University Hospital of South Manchester, Manchester, United Kingdom (G.E.)
7. University of Manchester and University Hospital of South Manchester, Manchester, United Kingdom (A.H.)
8. Norwegian University of Science and Technology, Trondheim, Norway (I.J., K.H., P.R.R., L.J.V.)