EGFR-mutant transformed small cell lung cancer harbors intratumoral heterogeneity targetable with MEK inhibitor combination therapy. Ogino A, Vajdi A, Mu XJ, et al. EGFR-mutant transformed small cell lung cancer harbors intratumoral heterogeneity targetable with MEK inhibitor combination therapy. JCI insight. 2026;11(2). doi:10.1172/jci.insight.197008 Read more