| 1 | (built AND environment) OR (“built environment”) | 12,688 |
| 2 | (older* OR senior* OR elder*) | 1,002,054 |
| 3 | #1 AND #2 | 763 |
| 4 | (review AND systematic OR meta–analysis) | 432,343 |
| 5 | #3 AND #4 | 29 |
| 6 | [2009–2019]/py | 13,972,704 |
| 7 | #5 AND #6 | 28 |
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