“30. EVALUATION OF THE EFFECTIVEENESS OF HIGH FREQUENCY CHEST PERCUSSION MACHINE IN PATIENTS ON VENTILATORS AT INTENSIVE CARE DEPARTMENT 1, VIET DUC UNIVERSITY HOSPITAL” (2024) Vietnam Journal of Community Medicine, 65(CĐ 9 - Hội Gây mê Hồi sức). doi:10.52163/yhc.v65iCD9.1544.