[1] Swiss Inst Bioinformat, Lausanne, Switzerland
[2] Swiss Fed Inst Technol, Basel, Switzerland
[3] Univ Hosp Gasthuisberg, B-3000 Louvain, Belgium
[4] Pfizer Inc, Worldwide Res & Dev, Oncol Res Unit, La Jolla, CA USA
[5] Pfizer Inc, San Diego, CA USA
[6] Univ Hosp Geneva, Geneva, Switzerland
[7] Dept Pathol, Lausanne, Switzerland
[8] Univ Lausanne Hosp, Dept Res, Lausanne, Switzerland