1. Bouvé College of Health Sciences, School of Nursing, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, USA
2. Hebrew SeniorLife, Institute for Aging Research, 1200 Centre Street, Boston, MA 02131, USA
3. Hackensack University Medical Center, 30 Prospect Avenue, Hackensack, NJ 07601, USA
4. School of Nursing, University of Maine, 5724 Dunn Hall, Orono, ME 04469, USA
5. Institute of Gerontology and Geriatric Research, Education and Clinical Center, Ann Arbor VA Healthcare Center, University of Michigan, 300 NIB 933 NW, Ann Arbor, MI 48109, USA
6. Nurse Practitioner Professional Resources, 4361 Route 42, Turnersville, NJ 08012, USA
7. Hochschule für Technik und Wirtschaft, Hönower Straße, 10318 Berlin, Germany