Affiliation: | MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford;, Department of Haematology, Hillingdon Hospital, Uxbridge, Middlesex;, Department of Haematology, Royal Hallamshire Hospital, Sheffield;, and Department of Haematology, Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, UK. E-mail: |