Affiliation: | Department of Histopathology, Cardiff and Vale NHS Trust, University Hospital of Wales, Heath Park, Cardiff,; Department of Respiratory Medicine, Wrexham Maelor Hospital, Croesnewydd Road, Wrexham,; Department of Haematology, Cardiff and Vale NHS Trust, University Hospital of Wales, Heath Park, Cardiff,; Department of Histopathology, Cardiff and Vale NHS Trust, Llandough Hospital, South Glamorgan, UK |