Methods We elected 63 lung adenocarcinoma patients who were cured in breast surgery section of Henan Tumor Hospital in 2003 and had observed them for 3 years. And making survival analysis by Product-Limit Method.

• 方法对2003年到河南省肿瘤医院胸外科治疗的63例肺腺癌患者进行为期3年的随访观察,用Product-Limit Method方法进行生存分析。