L. A. Gorenstein and J. R. Sonett, “The Surgical Management of Stage I and Stage II Lung Cancer,” Surgical Oncology Clinics of North America, Vol. 20, No. 4, 2011, pp. 701-720. doi:10.1016/j.soc.2011.07.009
 E. M. Tan, P. H. Schur, R. I. Carr and H. G. Kunkel, “Deoxybonucleic Acid (DNA) and Antibodies to DNA in the Serum of Patients with Systemic Lupus Erythematosus,” Journal of Clinical Investigation, Vol. 45, No. 11, 1966, pp. 1732-1740. doi:10.1172/JCI105479
 M. Stroun, P. Maurice, V. Vasioukhin, J. Lyautey, C. Lederrey, F. Lefort, et al., “The Origin and Mechanism of Circulating DNA,” Annals of the New York Academy of Sciences, Vol. 906, 2000, pp. 161-168. doi:10.1111/j.1749-6632.2000.tb06608.x
 F. Diehl, M. Li, D. Dressman, Y. He, D. Shen, S. Szabo, et al., “Detection and Quantification of Mutations in the Plasma of Patients with Colorectal Tumors,” Proceedings of the National Academy of Sciences of the United States of America, Vol. 102, No. 45, 2005, pp. 16368-16373. doi:10.1073/pnas.0507904102
 P. Therasse, S. G. Arbuck, E. A. Eisenhauer, J. Wanders, R. S. Kaplan, L. Rubinstein, et al., “New Guidelines to Evaluate the Response to Treatment in Solid Tumors. European Organization for Research and Treatment of Cancer, National Cancer Institute of the United States, National Cancer Institute of Canada,” Journal of the National Cancer Institute, Vol. 92, No. 3, 2000, pp. 205-216. doi:10.1093/jnci/92.3.205
 K. L. Spindler, N. Pallisgaard, I. Vogelius and A. Jakobsen, “Quantitative Cell-Free DNA, KRAS, and BRAF Mutations in Plasma from Patients with Metastatic Colorectal Cancer during Treatment with Cetuximab and Irinotecan,” Clinical Cancer Research, Vol. 18, No. 4, 2012, pp. 1177-1185. doi:10.1158/1078-0432.CCR-11-0564
 S. Kumar, R. Guleria, V. Singh, A. C. Bharti, A. Mohan and B.-C. Das, “Plasma DNA Level in Predicting Therapeutic Efficacy in Advanced Nonsmall Cell Lung Cancer,” European Respiratory Journal, Vol. 36, No. 4, 2010, pp. 885-892. doi:10.1183/09031936.00187909
 G. Pelosi, E. Schianchi, P. Dell’orto, G. Veronesi, L. Spaggiari, F. Pasini, et al., “Detecting Cell-Free Circulating hTERT mRNA in the Plasma May Identify a Subset of Nonsmall Cell Lung Cancer Patients,” Virchows Arch, Vol. 448, No. 1, 2006, pp. 7-15. doi:10.1007/s00428-005-0087-z
 C. Camps, R. Sirera, R. M. Bremnes, V. Rodenas, A. Blasco, M. J. Safont, et al., “Quantification in the Serum of the Catalytic Fraction of Reverse Telomerase: A Useful Prognostic Factor in Advanced Non-Small Cell Lung Cancer,” Anticancer Research, Vol. 26, No. 6C, 2006, pp. 4905-4909.
 R. Sirera, R. M. Bremnes, A. Cabrera, E. Jantus-Lewintre, E. Sanmartin, A. Blasco, et al., “Circulating DNA Is a Useful Prognostic Factor in Patients with Advanced NonSmall Cell Lung Cancer,” Journal of Thoracic Oncology, Vol. 6, No. 2, 2011, pp. 286-290. doi:10.1097/JTO.0b013e31820189a5
 R. M. Van den Berg, H. Brokx, A. Vesin, J. K. Field, C. Brambilla, C. J. Meijer, et al., “Prognostic Value of hTERT mRNA Expression in Surgical Samples of Lung Cancer Patients: The European Early Lung Cancer Project,” International Journal of Oncology, Vol. 37, No. 2, 2010, pp. 455-461.
 A. K. Pathak, M. Bhutani, S. Kumar, A. Mohan and R. Guleria, “Circulating Cell-Free DNA in Plasma/Serum of Lung Cancer Patients as a Potential Screening and Prognostic Tool,” Clinical Chemistry, Vol. 52, No. 10, 2006, pp. 1833-1842.
 O. Gautschi, C. Bigosch, B. Huegli, M. Jermann, A. Marx, E. Chasse, et al., “Circulating Deoxyribonucleic Acid as a Prognostic Marker in Non-Small-Cell Lung Cancer Patients Undergoing Chemotherapy,” Journal of Clinical Oncology, Vol. 22, No. 20, 2004, pp. 4157-4164. doi:10.1200/JCO.2004.11.123
 M. A. van der Drift, B. E. Hol, C H. Klaassen, C. F. Prinsen, Y. A. van Aarssen, R. Donders, et al., “Circulating DNA Is a Non-Invasive Prognostic Factor for Survival in Non-Small Cell Lung Cancer,” Lung Cancer, Vol. 68, No. 2, 2010, pp. 283-287. doi:10.1016/j.lungcan.2009.06.021
 G. J. Fournie, J. P. Courtin, F. Laval, J. J. Chale, J. P. Pourrat, M. C. Pujazon, et al., “Plasma DNA as a Marker of Cancerous Cell Death. Investigations in Patients Suffering from Lung Cancer and in Nude Mice Bearing Human Tumours,” Cancer Letters, Vol. 91, No. 2, 1995, pp. 221-227. doi:10.1016/0304-3835(95)03742-F