Yingqi Chen, X. Zhou, Z. Jiang, and Y. Liu. “Gegen Qinlian Decoction Combined With Metformin for the Treatment of Patients With Type-2 Diabetes Mellitus: A Retrospective Observational Study”. Pakistan Journal of Medical Sciences, Vol. 39, no. 4, June 2023, doi:10.12669/pjms.39.4.7776.