21 Ma Ma J J Pilichiewics Pilichiewics AN AN Feinle-Bisset Feinle-Bisset C C Wishart Wishart JM JM Jones Jones KL KL Horowitz Horowitz M M Effects of variations in duodenal glucose load on glycaemic, insulin, and incretin responses in type 2 diabetes Effects of variations in duodenal glucose load on glycaemic, insulin, and incretin responses in type 2 diabetes Diabetic Med Diabetic Med 2012 2012 29 29 5 5 604 604 608 608 22004512 22004512. The gene discussed is GCG; the disease is type 2 diabetes mellitus.