%0 Journal Article %T Long-Term Effectiveness and Cost-Effectiveness of Metformin Combined with Liraglutide or Exenatide for Type 2 Diabetes Mellitus Based on the CORE Diabetes Model Study %A Guoqiang Liu %A Meimei Tian %A Sisi Liu %A Xuesong Zhang %A Yan Wang %A Yukun Li %J Archive of "PLoS ONE". %D 2016 %R 10.1371/journal.pone.0156393 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4909290/