1. National Institute for Medical Research, Mill Hill, London
2. MRC Centre for Protein Engineering
3. Institute for Pathology, University of Tubingen, Tubingen, Germany
4. McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, Wisconsin
5. Department of Histopathology, Queens Medical Centre, Nottingham, United Kingdom
6. MRC Cancer Cell Unit, Cambridge
7. University of Otago, Dunedin, New Zealand