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Rizk, M., E. Zakaria, and Y. Khaled, "Glycated hemoglobin, glycated albumin and hypothyrodism. Is there a correlation", MGSD , Barcelona, Spain, 4 April, 2013.
Zakaria, E., H. Al-Rawi, N. Ghanem, N. El-Sayed, and L. A. Rashed, "Serum visfatin level in Egyptian diabetics with or without micro vascular complication", MGSD , Barcelona, Spain, 4 April, 2013.
Zakaria, E., H. Al-Rawi, N. Ghanem, N. El-Sayed, and L. A. Rashed, "Fractalkline in type 2 Egyptian diabetics with and without nephropathy", MGSD , Barcelona, Spain, 4 April, 2013.
Zakaria, E., N. Ghanem, R. Abdul-Sallam, and A. El-Shahaby, "The thyroid gland is another victim of the insulin resistance syndrome.", International and European Congress of Endocrinology, Florance, Italy, 5 May, 2012.
Zakaria, E., T. Fayad, M. Rizk, and N. Ghanem, "Association between insulin resistance, metabolic syndrome and duration of Hepatitis C in Egyptian patients ", BIT First Annual World Congress on Endometabolism , China, 25 Jan, 2011.