Deacon CF, Mannucci E, Ahrén B (tháng 8 năm 2012). “Glycaemic efficacy of glucagon-like peptide-1 receptor agonists and dipeptidyl peptidase-4 inhibitors as add-on therapy to metformin in subjects with type 2 diabetes-a review and meta analysis”. Diabetes Obes Metab. 14 (8): 762–7. doi:10.1111/j.1463-1326.2012.01603.x. PMID22471248.
Deacon CF, Mannucci E, Ahrén B (tháng 8 năm 2012). “Glycaemic efficacy of glucagon-like peptide-1 receptor agonists and dipeptidyl peptidase-4 inhibitors as add-on therapy to metformin in subjects with type 2 diabetes-a review and meta analysis”. Diabetes Obes Metab. 14 (8): 762–7. doi:10.1111/j.1463-1326.2012.01603.x. PMID22471248.