Cuihong Song, Jie Liao, Zihui Deng, Jinying Zhang, Hui Xue, Yongming Li, Chen Liang, Ming Han, Jianhua Li, & Guangtao Yan. (2014). Correlations between Carcinoembryonic Antigen, Epidermal Growth Factor and Leptin in Patients with Non-Small-Cell Lung Cancer. Journal of Analytical Oncology, 3(1),  11–17. https://doi.org/10.6000/1927-7229.2014.03.01.2