Yao, Sheng, and Senlin Zhu. “The Homeobox NKX and Neoplasms in Digestive System: A Systematic Review”. RA Journal Of Applied Research 3, no. 02 (February 9, 2017): 834–843. Accessed May 2, 2024. http://www.rajournals.in/index.php/rajar/article/view/199.