[1] Vanderbilt Univ, Sch Med, Nashville, TN 37212 USA
[2] Vanderbilt Univ, Med Ctr, Monroe Carell Jr Childrens Hosp Vanderbilt, Nashville, TN 37212 USA
[3] Vanderbilt Univ, Med Ctr, Nursing Res Off, Execut Nursing Adm, Nashville, TN 37212 USA
[4] Vanderbilt Univ, Med Ctr, Dept Otolaryngol Head & Neck Surg, Nashville, TN 37212 USA
[5] Vanderbilt Univ, Med Ctr, Surg Outcomes Ctr Kids, Nashville, TN 37212 USA
[6] Vanderbilt Univ, Med Ctr, Dept Anesthesiol, Nashville, TN 37212 USA