What is the Most Appropriate Method for Estimating the Depth for Endotracheal Tubes not to Pass through the Trachea of Korean Children in the Emergency Department?
Pediatric Emergency Medicine Journal. 2014;1(1):17-23 
Distances from vocal cords to mid-trachea for optimizing endotracheal tubes depth markers according to gestational age
Pediatric Anesthesia. 2018;28(4):361-366
Appropriate Sizes of Uncuffed Endotracheal Tubes and Distance from Upper Incisor to Carina in Korean Children under Eight Years Old
Korean Journal of Anesthesiology. 1997;33(5):844
Rate and Outcomes of Unrecognized Esophageal Placement of Endotracheal Tubes by Paramedics in an Urban Emergency Department
Academic Emergency Medicine. 2004;11(5):591-592
Proper Depth of Placement of Oral Endotracheal Tubes in Adults Prior to Radiographic Confirmation
Academic Emergency Medicine. 1995;2(1):20-24
100 Successful Endotracheal Tube Exchange for Laryngeal Tubes in the Emergency Department
Annals of Emergency Medicine. 2018;72(4):S43
Appropriate Use of Emergency Medical Services and a Solution for Emergency Department Overcrowding in Large Hospitals in Korea
Journal of the Korean Medical Association. 2009;52(11):1044
Emergency department satisfaction: What matters most?
Annals of Emergency Medicine. 1993;22(3):586-591
The Search for the Correlation between Malpositioned Endotracheal Tubes
Academic Emergency Medicine. 2005;12(Supplement 1):162-162
On determining the appropriate size of endotracheal tubes (see pp. 183–185, 186–190)
Pediatric Pulmonology. 1989;6(3):137-137