Erlotinib and Cetuximab in Treating Patients With Advanced Gastrointestinal Cancer, Head and Neck Cancer, Non-Small Cell Lung Cancer, or Colorectal Cancer
Erlotinib Hydrochloride in Treating Patients With Previously Treated Non-Small Cell Lung Cancer, Head and Neck Cancer, or Esophageal Cancer and Precancerous Lesions of the Lung
Erlotinib and Cetuximab in Treating Patients With Advanced Solid Tumors or Progressive or Recurrent Stage III or Stage IV Non-Small Cell Lung Cancer
Erlotinib and Stereotactic Body Radiation Therapy in Treating Patients With Locally Advanced or Metastatic Non-Small Call Lung Cancer
Study of Tarceva and Targretin in Stage I-II Lung Cancer