[1] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA
[2] Armed Forces Inst Pathol, Washington, DC 20306 USA
[3] CHU Grenoble, F-38043 Grenoble, France
[4] Manchester Royal Infirm, Manchester M13 9WL, Lancs, England
[5] Toyama Med & Pharmaceut Univ, Toyama, Japan