1. Department of Otolaryngology–Head and Neck Surgery, University of Arkansas for Medical Sciences (UAMS), Little Rock, Arkansas, USA
2. Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
3. Department of Otolaryngology–Head and Neck Surgery, Emory University, Atlanta, Georgia, USA
4. Department of Geriatric Medicine, Endocrinology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
5. UAMS Thyroid Center, Little Rock, Arkansas, USA