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. 2015 Mar 30;68(2):116–121. doi: 10.4097/kjae.2015.68.2.116

Table 7. The Effect of Clinical Experience on Successful Endotracheal Intubation in Two Head and Neck Positions.

Experience Position Successful endotracheal intubation
Residents Sniffing 16
Ramped 24
Attending anesthesiologists Sniffing 26
Ramped 39*

Values are expressed as number of patients. *P < 0.05 vs Residents in the ramped position.