1. Otolaryngology‐Head and Neck Surgery, College of Medicine University of Arkansas for Medical Sciences Little Rock Arkansas U.S.A.
2. Pediatric Otolaryngology, Anesthesiology, Pathology and Laboratory Medicine Arkansas Children's Hospital Little Rock Arkansas U.S.A.
3. Center for Pediatric Translational Research Biostatistics Arkansas Children's Research Institute Little Rock Arkansas U.S.A.