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OBJECTIVE The 1997 version of the TNM staging system for lung cancer has several prognostic problems. Among these, the overlapping survival of stages IB and IIA is the most serious. We performed this(More)
BACKGROUND Tyrosine kinase domain (TKD) gene mutations of the epidermal growth factor receptor gene (EGFR) have proven to be clinically significant in nonsmall-cell lung cancer (NSCLC), particularly(More)
INTRODUCTION This retrospective study was designed to identify the predictors of long-term survival and the risk factors for complications after surgery in patients aged 80 years or older with(More)