Javed, F., A. Asghar, S. Sheikh, M. A. Butt, N. Hashmat, and B. A. Malik. “Comparison of Serum Zinc Levels Between Healthy and Malnourished Children”. Annals of Punjab Medical College, Vol. 3, no. 2, Dec. 2009, pp. 139-43, doi:10.29054/apmc/2009.578.