[1] Derriford Hosp, Dept Cellular & Anat Pathol, Plymouth PL6 8DH, Devon, England
[2] Derriford Hosp, Dept Haematol, Plymouth PL6 8DH, Devon, England
[3] Cambridge Univ Hosp NHS Fdn Trust, Addenbrookes Hosp, Mol Malignancy Lab, Cambridge, England
[4] Cambridge Univ Hosp NHS Fdn Trust, Addenbrookes Hosp, Dept Histopathol, Cambridge, England