A novel model-based meta-analysis to indirectly estimate the comparative efficacy of two medications: an example using DPP-4 inhibitors, sitagliptin and linagliptin, in treatment of type 2 diabetes mellitus

Gross JL, Rogers JA, Polhamus D, Gillespie W, Friedrich C, Gong Y, Monz BU, Patel A, Staab A, Retlich S. BMJ Open. 5 March 2013.