2Cappuzzo F, Hirsch FR, Rossi E, et al. Epidermal growth factor receptor gene and protein and gefitinib sensitivity in non - small - cell lung cancer [J]. J Nat Cancer Institute, 2013, 97 (9) : 643 -647.
3Ferlay J, Shin HR, Bray F, et al. Estimates of worldwide burden of canc- er in 2008: Globocan 2008 [ J] . Int J Cancer, 2010, 127 (12) : 2893 - 2896.