1. Gloucestershire Cellular Pathology Laboratory; Cheltenham General Hospital; Cheltenham UK
2. Department of Cellular Pathology; University College Hospital; London UK
3. Department of Cellular Pathology; Warwick Hospital; Warwick UK
4. Late of the Cellular Pathology Department; John Radcliffe Hospital; Oxford UK
5. Division of Cancer & Genetics; Cardiff University School of Medicine; Cardiff UK
6. Leeds Institute of Cancer and Pathology; St James's University Hospital; Leeds UK