Assessment of Renal Function of Eritrean Diabetic Patients Using the GFR derived from the Serum levels Creatinine, Cystatin C or Creatinine- Cystatin C Journal title: Scholars Journal of Applied Medical Sciences Authors: Shamseldin M. Ahamed, Rustom Zeratsion, Imadeldin Elfaki, GadAllah Modawe Subject(s):