Effect evaluation of calibrated endotracheal sputum suction depth on prevention of airway mucosal injury in elderly patients with mechanical ventilation
WANG Yingqiang, SONG Wenjing, WANG Ying
天津护理 . 2020, (3): 290 -293 .  DOI: 10.3969/j.issn.1006-9143.2020.03.010