High-Dose,Pulsatile Erlotinib/Gefitinib for Advanced NSCLC Patients After Failure of Standard Dose EGFR-TKIs
An Open,Multi Center Trial to Evaluate the Efficacy and Safety of High-Dose,Pulsatile Erlotinib/Gefitinib for Advanced Non-Small Cell Lung Cancer Patients After Failure of Standard Dose EGFR-TKIs