Shahid, S. , Shaikh, R. , Nawab, S. , Qader, S. , Azhar, A. , Mahboob, T.. "Serum Nitric Oxide and Sialic Acid: Possible Biochemical Markers for Progression of Diabetic Nephropathy". World Academy of Science, Engineering and Technology, Open Science Index 46, International Journal of Biomedical and Biological Engineering, (2010), 4(10), 772 - 775.