G. P. Dubey et al. 2015. Combination Treatment with a Novel Polyherbal Formulation and Metformin: A Single Blind Placebo-Controlled Study in Patients with T2DM and Cognitive Impairments. Diabetes Research. 1, 4 (Aug. 2015), 92–102. DOI:https://doi.org/10.17140/DROJ-1-116.