Expression and functional activity of glucagon, glucagon-like peptide I, and glucose-dependent insulinotropic peptide receptors in rat pancreatic islet cells. - Moens,K.; Heimberg,H.; Flamez,D.; Huypens,P.; Quartier,E.; Ling,Z.; Pipeleers,D.; Gremlich,S.; Thorens,B.; Schuit,F. (Diabetes, 1996)