Li, X., T. Yu, M. Li, Y. Wang, B. Meng, and Y. Mu. “NANOG Improves Type I Collagen Expression in Human Fetal Scleral Fibroblasts”. Archives of Biological Sciences, vol. 71, no. 1, Apr. 2019, pp. 63-70, https://serbiosoc.org.rs/arch/index.php/abs/article/view/3187.