Osorio, Julio, Harry Pachajoa, and Paula Hurtado. “DNA Concentration and Purity of Blood Samples Stored in Whatman FTA Paper Between 1 to 3 Years”. Revista Estomatología 21, no. 1 (January 15, 2013): 35–38. Accessed January 9, 2026. https://estomatologia.univalle.edu.co/index.php/revista_estomatologia/article/view/5756.