1. Photonics Group, Department of Physics, Imperial College London, London SW7 2AZ (UK), Fax: (+44) 2075947714
2. Institute for Chemical Biology, Department of Chemistry, Imperial College London, London SW7 2AZ (UK)
3. Clinical Sciences Centre, MRC, Imperial College London, Hammersmith Campus, London W12 0NN (UK)
4. Centre for Cell and Molecular Biology, Institute of Cancer Research, London SW3 6JB (UK)
5. Mauna Kea Technologies, 9 rue d'Enghien, 75010 Paris (France)
6. Department of Surgery and Cancer, Imperial College London, Du Cane Rd., London W12 0NN (UK)
7. Division of Cell and Molecular Biology, Department of Life Sciences, Imperial College London, London SW7 2AZ (UK)
8. Department of Histopathology, Imperial College London, Du Cane Rd., London W12 0NN (UK)
9. Pfizer Global Research and Development, Pfizer Limited, Sandwich, Kent CT13 9NJ (UK)
10. Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ (UK)