Yunyun, Lu. “Coexistence of Epidermal Growth Factor Receptor 19 Deletion and 21 Point Mutation in Nonsmall Cell Lung Cancer: A Report of 3 Cases”. International Journal of Clinical and Experimental Physiology 4, no. 3 (September 28, 2018): 157-159. Accessed May 18, 2024. https://www.ijcep.org/index.php/ijcep/article/view/218.