Osorio Orozco, J. H., J. Vinasco, and J. E. Pérez C. “Comparison of Two Methods for the Measurement of HDL Cholesterol Levels in Cattle”. Biosalud, vol. 12, no. 1, June 2013, pp. 11-17, https://revistasojs.ucaldas.edu.co/index.php/biosalud/article/view/4702.