Risk factors related to diabetic retinopathy in Vietnamese patients with type 2 diabetes mellitus oleh Van Nga Vu, Minh Nguyen Thi Binh, Dung Dinh Thi My, Anh Nguyen Thi Lan, Huu Nguyen Cong, Van Anh Bui Thi, Hiep Nguyen Xuan, Ha Hoang Thi Thu, Van Khanh Tran, Thom Vu Thi, Thanh Le Ngoc