Osorio, J., Pachajoa, H. and Hurtado, P. 2013. DNA concentration and purity of blood samples stored in whatman FTA paper between 1 to 3 years. Revista Estomatología. 21, 1 (Jan. 2013), 35–38. DOI:https://doi.org/10.25100/re.v21i1.5756.