Ke-Wen ZHOU ; Hua YANG ; Xiao-Qan WANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2007;42(5):384-385
Adult ; Aged ; Female ; Humans ; Infection ; Infection Control ; instrumentation ; methods ; Intubation, Intratracheal ; instrumentation ; methods ; Male ; Middle Aged ; Suction ; Tracheostomy ; adverse effects ; Young Adult