[1] Univ Hosp Birmingham UHB NHS Fdn Trust, Dept Acute Internal Med, Birmingham, England
[2] Univ Hosp Birmingham UHB NHS Fdn Trust, Dept Haematol, Birmingham, England
[3] Sandwell & West Birmingham Hosp SWBH NHS Trust, Dept Haematol, Birmingham, England
[4] Homerton Univ Hosp HUH NHS Fdn Trust, Dept Haematol, London, England
[5] Univ Hosp Birmingham UHB NHS Fdn Trust, Dept Histopathol, Birmingham, England
[6] Univ Hosp Birmingham UHB NHS Fdn Trust, Dept Neurol, Birmingham, England
[7] Univ Hosp Birmingham UHB NHS Fdn Trust, Dept Neuroradiol, Birmingham, England
[8] Univ Hosp Birmingham UHB NHS Fdn Trust, Dept Resp & Crit Care Med, Birmingham, England
[9] Sandwell & West Birmingham Hosp NHS Trust, Birmingham City Hosp, Dept Acute Internal Med, Dudley Rd, Birmingham B18 7QH, England