Media type: E-Article Title: Prognostic factors in 408 elderly lung cancer patients over 70 years old Contributor: Zheng, Hua; Tong, Li; Hu, Ying; Wu, Weihua; Zhang, Hongmei; Li, Baolan imprint: Springer Science and Business Media LLC, 2012 Published in: The Chinese-German Journal of Clinical Oncology Language: English DOI: 10.1007/s10330-012-1016-7 ISSN: 1613-9089; 1610-1979 Keywords: Oncology Origination: Footnote: