EFFECTIVENESS OF PNEUMONIA PREVENTION IN CONNECTIVE PNEUMONIA RELATED TO MECHANICAL VENTILATION WITH CLOSED SUCTION SYSTEMS IN PATIENTS WITH CRANIAL TRAUMA. YHCĐ [Internet]. 2026 Apr. 2 [cited 2026 Sept. 9];67(CĐ3-NCKH). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/4719