Şahin, Kübra, et al. “Metformin With Versus Without Concomitant Probiotic Therapy in Newly Diagnosed Patients With Type 2 Diabetes or Prediabetes: A Comparative Analysis in Relation to Glycemic Control, Gastrointestinal Side Effects, and Treatment Compliance”. Turkish Journal of Gastroenterology, vol. 33, no. 11, Jan. 2022, pp. 925-33, doi:10.5152/tjg.2022.211063.