Hagström H., Jokinen E., Seppänen R., Salo P., Viikari J., Rönnemaa T., Helenius H., and Simell O. “Fatty Acids in Serum Lipid Fractions As Indicators of Fat Intake in 5-Year-Old Children in the STRIP Project”. Food & Nutrition Research, Dec. 1998, pp. 140-4, doi:10.3402/fnr.v42i0.1759.