Hoàng, Hải Nam, Thị Minh Hải Nguyễn, Huy Tuấn Kiệt Phạm, Trọng Tài Nguyễn, and Hương Giang Lê. “ANALYZE TREATMENT COST OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE IN GENERAL HOSPITAL OF SON TAY PROVINCE 2021”. Vietnam Medical Journal 527, no. 2 (July 5, 2023). Accessed May 17, 2024. https://tapchiyhocvietnam.vn/index.php/vmj/article/view/5853.