5. ASSESSMENT OF SLEEP QUALITY USING THE PSQI SCORE IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE TREATED AS OUTPATIENTS AT BACH MAI HOSPITAL IN 2025. YHCĐ 2025, 66 (CĐ10-HNKH Trường ĐH Phenikaa). https://doi.org/10.52163/yhc.v66iCD10.2608.