Mapelli C, Natarajan SI, Meyer JP, Bastos MM, Bernatowicz MS, Lee VG, Pluscec J, Riexinger DJ, Sieber-McMaster ES, Constantine KL, Smith-Monroy CA, Golla R, Ma Z, Longhi DA, Shi D, Xin L, Taylor JR, Koplowitz B, Chi CL, Khanna A, Robinson GW, Seethala R, Antal-Zimanyi IA, Stoffel RH, Han S, Whaley JM, Huang CS, Krupinski J, Ewing WR. Eleven amino acid glucagon-like peptide-1 receptor agonists with antidiabetic activity. J Med Chem. 2009 Dec 10; 52(23):7788-99.