No discrepancies in EML4-ALK rearrangements existed according to fluorescence in situ hybridization.     ///    Rare ITHs of EGFR/KRAS/EML4-ALK alterations within histologically heterogeneous primary lung adenocarcinomas existed by methods with higher sensitivity.    ///    "Driver genes, epidermal growth factor receptor (EGFR), KRAS and EML4-ALK, were assessed by assays with different sensitivities. "    ///    EML4-ALK=4) were enrolled. 