[1] Univ Alberta, Cross Canc Inst, Edmonton, AB, Canada
[2] Univ Lyon 1, Hosp Civils Lyon, F-69365 Lyon, France
[3] Inst Gustave Roussy, Villejuif, France
[4] Catalan Inst Oncol, Barcelona, Spain
[5] SUNY Syracuse, Syracuse, NY USA
[6] Queens Univ, Kingston, ON, Canada
[7] Med Univ Vienna, Vienna, Austria