RT Journal Article SR Electronic T1 A comparison of the laryngeal mask airway and cuffed oropharyngeal airway during percutaneous dilatational tracheostomy JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1139 OP 1141 VO 28 IS 7 A1 Girgin, Nermin K. A1 Kahveci, Sohret F. A1 Yavascaoglu, Belgin A1 Kutlay, Oya YR 2007 UL http://smj.org.sa/content/28/7/1139.abstract AB