FACTORS ASSOCIATED WITH SLEEP DISORDERS AMONG PATIENTS WITH RECURRENT DEPRESSIVE DISORDER AT THE NATIONAL INSTITUTE OF MENTAL HEALTH, BACH MAI HOSPITAL. YHCĐ [Internet]. 2026 Sept. 25 [cited 2026 Nov. 5];67(CD15). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/6830