II. To evaluate epidermal growth factor receptor (EGFR) by Immunohistochemistry (IHC), mutation, and gene copy number, Insulin-like growth factor 1 receptor (IGF-1R) and Insulin-like growth factor 2 receptor (IGF-2R) expression (both phosphorylated and unphosphorylated states), expression of p-AKT (ie, Protein Kinase B) by IHC, and k-ras mutation.