Ohadoma, S.C. et al. 2020. Concomitant Administration of Catharanthus roseus Extract Improves Efficacy and Safety by Nullifying Diarrhea-Related Toxicity of Acarbose and Metformin in Wistar Rats: doi.org/10.26538/tjnpr/v4i9.25. Tropical Journal of Natural Product Research (TJNPR). 4, 9 (Sep. 2020), 649–652.