1. Kansas City, KS; and Kansas City, MO
2. Department of Otolaryngology–Head and Neck Surgery, University of Kansas School of Medicine, Kansas City, Kansas
3. Section of Otolaryngology–Head and Neck Surgery, Children's Mercy Hospitals and Clinic, Kansas City, Missouri
4. Department of Anesthesiology and Critical Care Medicine, Children's Mercy Hospitals and Clinics, Kansas City, Missouri