1. Independent Research Consultant, Ardmore, PA, USA;
2. Department of Sociology and Gerontology, Miami University, Oxford, OH, USA;
3. The Polisher Research Institute at The Madlyn and Leonard Abramson Center for Jewish Life, North Wales, PA, USA;
4. Graduate School of Education, University of Pennsylvania, Philadelphia, PA, USA;
5. The Pennsylvania State University, College of Nursing, 201 Nursing Sciences Building, University Park, PA, USA