Tzanetakos, Charalampos Melidonis, Andreas Verras, Christos and Kourlaba, Georgia Maniadakis, Nikos, Cost-effectiveness analysis of liraglutide versus sitagliptin or exenatide in patients with inadequately controlled Type 2 diabetes on oral antidiabetic drugs in Greece, BMC Health Services Research, (14), 2014, BMC, 1472-6963