Degradation of endogenous and exogenous gastric inhibitory polypeptide in healthy and in type 2 diabetic subjects as revealed using a new assay for the intact peptide. - Deacon,C.F.; Nauck,M.A.; Meier,J.; Hucking,K.; Holst,J.J. (J Clin Endocrinol Metab, 2000)