On page 5391 in the 7 June 2012 issue, the byline and author affiliations omit the twelfth author, Britta Höchsmann. The corrected byline and author affiliations are shown below.

The Authorship Contribution on page 5395 should have read, “J.C.M. was the principal investigator for this study and wrote the paper; J.C.M., J.R.P., A.T., H.S., G.S., and A. Bacigalupo designed the study and performed investigations; J.C.M., A. Bacigalupo, H.S., A.T., A.M.R., J.R.P., M.A., B.H., C.D., S.B.K., A. Barrois, T.H.B., A.J.W., A.F., P.S., R.O., A.R., S.K., G.J.M., and G.S. analyzed data and wrote the paper; R.O., A. Barrois, and P.S. analyzed data; S.K. performed the in vitro studies; J.C.M., A. Bacigalupo, A.T., J.R.P., S.B.K., A.R., A.F., A.J.W., M.A., H.A.A.-Z., B.H., T.F., M.O.E., G.J.M., and G.S. recruited patients; and P.S., A. Bacigalupo, R.O., and A. Barrois performed statistical analysis.”

Judith C. Marsh,1 Andrea Bacigalupo,2 Hubert Schrezenmeier,3 Andre Tichelli,4 Antonio M. Risitano,5 Jakob R. Passweg,4 Sally B. Killick,6 Alan J. Warren,7 Theodora Foukaneli,7 Mahmoud Aljurf,8 H. A. Al-Zahrani,8 Britta Höchsmann,3 Philip Schafhausen,9 Alexander Roth,10 Anke Franzke,11 Tim H. Brummendorf,12 Carlo Dufour,13 Rosi Oneto,14 Philip Sedgwick,15 Alain Barrois,16 Shahram Kordasti,1 Modupe O. Elebute,1 Ghulam J. Mufti,1 and Gerard Socie,17 on behalf of the European Blood and Marrow Transplant Group Severe Aplastic Anaemia Working Party

1Department of Haematological Medicine, King's College Hospital/King's College London, London, United Kingdom; 2Department of Hematology II, Azienda Ospedaliera Universitaria San Martino, Genoa, Italy; 3Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service and University of Ulm, Ulm, Germany; 4Department of Hematology, University Hospital, Basel, Switzerland; 5Department of Biochemistry and Medical Biotechnology, Hematology, Federico II University of Naples, Naples, Italy; 6Department of Haematology, Royal Bournemouth Hospital, Bournemouth, United Kingdom; 7Department of Haematology, University of Cambridge, Cambridge, United Kingdom; 8Adult Hematology/HSCT Oncology Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia; 9Department of Oncology and Hematology, University Cancer Centre Hamburg, Hamburg, Germany; 10Department of Hematology, West German Cancer Center, University Hospital Essen, Essen, Germany; 11Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany; 12Department of Hematology and Oncology, University Hospital of the Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany; 13Hematology Unit G. Gaslini Childrens’ Research Hospital, Genova, Italy; 14Department of Hematology II, Azienda Ospedaliera Universitaria San Martino, Genoa, Italy; 15Centre for Medical and Healthcare Education, St George’s, University of London, London, United Kingdom; 16European Blood and Marrow Transplant Clinical Trials Office, Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden, The Netherlands; and 17Hospital Saint Louis, Hematology-Transplantation and Université Paris VII, Paris, France