3-AP and Gemcitabine as Second-Line Therapy in Treating Patients With Stage III or Stage IV Recurrent Non-Small Cell Lung Cancer [clinicaltrials:NCT00077415]

3-AP and Gemcitabine as Second-Line Therapy in Treating Patients With Stage III or Stage IV Recurrent Non-Small Cell Lung Cancer [clinicaltrials:NCT00077415]