Dr Andrew Blann, FRCPath FIBMS CSci, Consultant Clinical Scientists and Honorary Senior Lecturer in Medicine, University Department of Medicine, UK; Deputy Chief Examiner in Haematology with the Institute of Biomedical Science and an Examiner in Haematology with the Royal College of Pathologists. Dr Nessar Ahmed, CSci FIBMS, Reader in Clinical Biochemistry, School of Healthcare Science, Manchester Metropolitan University, UK.