Y. Tian, M. Yu, L. Sun, X. Ren, W. Liang, W. Shang, S. Huo, L. Liu, Y. Ren, H. Wen, Z. Yang, S. Wei and C. Wang, "Investigation of Combining Serum Tumor Biomarkers and Clinical Features for Elderly Lung Cancer Diagnosis and Classification,"
Journal of Cancer Therapy, Vol. 5 No. 2, 2014, pp. 133-140. doi:
10.4236/jct.2014.52016.