| UCLA | University of California, Los Angeles |
| VoA | Views on Ageing |
| GDS | Geriatric Depression Score |
| DRKS | German Clinical Trials Register |
| OPS | Operations and Procedures Key System |
| DEAS | German Ageing Survey |
| UCLA | University of California, Los Angeles |
| VoA | Views on Ageing |
| GDS | Geriatric Depression Score |
| DRKS | German Clinical Trials Register |
| OPS | Operations and Procedures Key System |
| DEAS | German Ageing Survey |