Nguyen Thi Thu Thuy, To Hue Nghi, Tran Ngoc Thien Thanh, Huynh Hai Duong, và Nguyen Cao Duc Huy, “Cost-effectiveness of metformin in the prevention of Type 2 diabetes mellitus: A systematic review”, HIUJS, vol 7, tr 101–114, tháng 12 2024.