1. The Department of Sociology and Gerontology, Miami University, Oxford, OH, USA;
2. The Department of Sociology and Gerontology, Scripps Geronotology Center, Miami University, Oxford, OH, USA;
3. Mayo Clinic, Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Rochester, MI, USA;
4. United Church Homes, Marion, OH, USA;
5. The College of Nursing, The Pennsylvania State University, University Park, State College, PA, USA