1. Medical Doctorate Program Vanderbilt University School of Medicine Nashville Tennessee USA
2. Centro Quirugico Pediatrico Moore Guatemala City Guatemala
3. Department of Otolaryngology–Head and Neck Surgery Vanderbilt University Medical Center Nashville Tennessee USA
4. Department of Anesthesia, Pediatric Division Vanderbilt University Medical Center Nashville Tennessee USA
5. Department of Biostatistics Vanderbilt University Medical Center Nashville Tennessee USA
6. Department of Pediatric Otolaryngology–Head and Neck Surgery Vanderbilt Children's Hospital Nashville Tennessee USA