“42. THE STUDY OF ENDOBRONCHIAL ULTRASOUND IN DIAGNOSING MEDIASTINAL LESIONS IN NATIONAL LUNG HOSPITAL, 2021”, YHCĐ, vol. 65, no. CĐ 3 - Bệnh viện Phổi Trung ương, May 2024, doi: 10.52163/yhc.v65iCD3.1139.