1. Department of Otolaryngology–Head and Neck Surgery, University of Arkansas for Medical Sciences (UAMS), Little Rock, Arkansas, USA
2. UAMS Thyroid Center, Little Rock, Arkansas, USA
3. Department of Biostatistics, UAMS, Little Rock, Arkansas, USA
4. University Health System Consortium, Oak Brook, Illinois, USA
5. Department of Geriatrics, UAMS, Little Rock, Arkansas, USA