Lung carcinoma induced by KRAS4A. (image) Centro Nacional de Investigaciones Oncológicas (CNIO) Share Print E-Mail Caption Lung carcinoma induced by KRAS4A. / CNIO Credit CNIO Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.