[1] Univ London Imperial Coll Sci Technol & Med, Dept Histopathol, London, England
[2] Univ London Imperial Coll Sci Technol & Med, Dept Bioengn, London, England
[3] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London, England
[4] Univ London Imperial Coll Sci Technol & Med, Dept Surg, London, England
[5] Univ London Imperial Coll Sci Technol & Med, Kennedy Inst, London, England