Zhao, Xing, Rajina Sahi, Yu-Yang Zhao, Jun Wang, and Chun-Hui Li. 2017. “Expressions of HPV 16-E6 in Esophageal Carcinoma and Its Clinical Significance”. Journal of Advances in Internal Medicine 4 (2):57-60. https://doi.org/10.3126/jaim.v4i2.16897.