Nguyen, T. P. T.; Chau, C. H.; Vo, H. T. STUDY ON CLINICAL, LABORATORY CHARACTERISTICS AND EVALUATING THE RESULTS OF TREATMENT OF OTITIS MEDIA WITH EFFUSION BY INSERTING TYMPANOSTOMY TUBE AT CAN THO EAR NOSE THROAT HOSPITAL IN 2019 – 2021. CTJUMP 2026, 8-14.