Guevara-Amador, C., C. Criollo-Díaz, and C. Pineda-Cañar. “Comparison of Low-Density Lipoprotein Obtained from the Friedewald Formula and New Formulae in a Heterogeneous Population”. Colombia Médica, Vol. 41, no. 4, Jan. 2011, pp. 328-35, doi:10.25100/cm.v41i4.724.