Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) WONG AS,Evidence of disease control with erlotinib after gefitinib failure in typical gefitinib-sensitive Asian patients with non-small cell lung cancer,J Thorac Oncol,,,2008,3,,400-404,https://cir.nii.ac.jp/crid/1570572701238687872,