1. The Russian Clinical Research Center for Gerontology, Pirogov Russian National Medical University, Moscow, Russian Federation.
2. Lomonosov Moscow State University, Moscow, Russian Federation.
3. Siaal Research Center for Family Medicine and Primary Care, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
4. Department of Geriatrics, Soroka Medical Center, Beer-Sheva, Israel.
5. Unit for Community Geriatrics, Division of Health in the Community, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
6. Center for Multidisciplinary Research in Aging, Ben-Gurion University of the Negev, Beer-Sheva, Israel.