Sun, Liping, Tianfeng Niu, and Yi Zhang. “Association Between Thyroid Cancer and CTLA-4 Gene Polymorphisms: Association Between Thyroid Cancer and CTLA-4”. Cellular and Molecular Biology 69, no. 4 (April 30, 2023): 31–36. Accessed May 16, 2024. https://www.cellmolbiol.org/index.php/CMB/article/view/4737.