Fig. 6

Figure A-B presents the distribution of brain metastases in the control group. C-D presents the distribution of brain metastases in overexpression of the EGFR protein group (EGFR-amp). E shows the brain metastasis rate between EGFR-amp and the control group. F shows the distribution of brain metastases in the loss of function of EGFR protein group (EGFR-sh)