Yang C, Loehn M, Jurczyk A, Przewozniak N, Leehy L, Herrera PL, Shultz LD, Greiner DL, Harlan DM, Bortell R. Lixisenatide accelerates restoration of normoglycemia and improves human beta-cell function and survival in diabetic immunodeficient NOD-scid IL-2rg(null) RIP-DTR mice engrafted with human islets. Diabetes Metab Syndr Obes. 2015; 8:387-98.