RT Journal Article SR Electronic T1 An Improved Method for Endotracheal Intubation During Anesthesia JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 256 OP 259 VO 23 IS 4 A1 Wasmuth, Carl E. A1 Portzer, Marietta YR 1956 UL http://www.ccjm.org/content/23/4/256.abstract AB