Vương GB, Trương TN, Nguyễn NH, Quách TH. INVESTIGATION ON RISK FACTORS OF INSOMNIA IN THE ELDERLY AT NGUYEN TRAI AND THONG NHAT HOSPITAL. VMJ [Internet]. 2023Oct.27 [cited 2024Jul.3];531(1). Available from: https://tapchiyhocvietnam.vn/index.php/vmj/article/view/6939