Nguyen, Trung Anh, Ngoc Tam Nguyen, và Thi Thanh Huyen Vu. 2021. “Associated Factors With Constipation in Elderly Diabetic Patients”. Vietnam Journal of Diabetes and Endocrinology, số p.h 48 (Tháng Bảy):10-13. https://doi.org/10.47122/vjde.2021.48.2.