Kazanasmaz, H., N. Atas, and M. Karaca. “Specificity and Sensitivity of Biotinidase Activity Measured from Dried Blood Spot by Colorimetric Method”. Annals of Medical Research, vol. 26, no. 10, May 2021, pp. 2306-11, http://www.annalsmedres.org/index.php/aomr/article/view/1785.