1434 POSTER Impact of KRAS Mutations (Krasmut) on Clinical Outcome in Stage IV Non-small Cell Lung Cancer (NSCLC) Patients (pts) and Their Relationship With Other Biomarkers - Cros, S.; Capdevila, L.; Carcereny, E.; Moran, T.; Martinez, A.; Buges, C.; Pardo, N.; Cuadra, J.L.; Rosell, R. (European Journal of Cancer, 2011)