A. A. Alshatwi and N. A. Alrefai, “A Comparison of Serum Omega - 3 Fatty Acid Concentrations Between Patients with Coronary Heart Disease and Healthy Subjects”, Pak. J. Nutr., vol. 6, no. 1, pp. 72–74, Dec. 2006, doi: 10.3923/pjn.2007.72.74.