[1] Univ Virginia, Charlottesville, VA USA
[2] Karmanos Canc Inst, Detroit, MI USA
[3] UCLA, David Geffen Sch Med, Los Angeles, CA USA
[4] Univ Verona, I-37100 Verona, Italy
[5] German Ctr Lung Res DZL, ARCN, Lungen Clin Grosshansdorf, Grosshansdorf, Germany
[6] Merck & Co Inc, Kenilworth, NJ USA
[7] Dana Farber Canc Inst, Boston, MA 02115 USA