1. Cochlear Center for Hearing and Public Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
2. Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
3. Department of Hearing & Speech Sciences, University of Maryland, College Park, MD, USA
4. The Hopkins’ Economics of Alzheimer’s Disease and Services (HEADS) Center, Baltimore, MD, USA