Vo VT, Ngo CQ, Phan HND, et al. CLINICAL FEATURES, RESULTS OF TREATMENT OF SEVERE PNEUMONIAE TREATED WITH OXYGEN SUPPORT IN CHILDREN FROM 2 MONTHS TO 5 YEARS OLD AT CHILDREN’S HOSPITAL 1 HO CHI MINH CITY. ctump. 2024;(70):155-161. doi:10.58490/ctump.2024i70.2239