ปันทะ ป., & เตชะเคหะกิจ ว. (2019). The prevalence of and factors associated with inappropriate metformin prescription in type 2 DM patients with contraindications: a case study in Thailand. Region 11 Medical Journal, 33(1), 131–140. retrieved from https://he02.tci-thaijo.org/index.php/Reg11MedJ/article/view/188375