1. University of Iceland, Reykjavik, Iceland, and Sahlgrenska University Hospital, Gothenburg, Sweden (I.S.)
2. University of Iceland, Reykjavik, Iceland, and Rigshospitalet, Copenhagen, Denmark (S.T.)
3. University of Iceland and Landspitali–The National University Hospital of Iceland, Reykjavik, Iceland (S.R., R.Palmason, S.Y.K., T.J.L.)
4. University of Iceland, Reykjavik, Iceland (T.A., A.R.T., G.K.G., A.O., J.S.)
5. Landspitali–The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
6. University of Iceland and Landspitali–The National University Hospital of Iceland, Reykjavik, Iceland, and Skåne University Hospital, Lund, Sweden (R.Palsson)
7. University of Iceland, Reykjavik, Iceland, and Skåne University Hospital, Lund, Sweden (T.E.L.)
8. Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York (M.H.)
9. Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Outpatient Cancer Center, Los Angeles, California (B.G.M.D.)
10. Binding Site Group, Birmingham, United Kingdom (S.H.)
11. Myeloma Program, Department of Medicine, University of Miami, Sylvester Comprehensive Cancer Center, Miami, Florida (O.L.).