Lin, Yu-Sheng, et al. “Renal Metastasis of Esophageal Squamous Cell Carcinoma- A Case Report and Literature Review”. Archives of Clinical and Medical Case Reports, vol. 2, no. 1, Jan. 2018, pp. 24-30, https://fortunejournals.org/ojs/index.php/acmcr/article/view/15212.