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Search strategy for the CENTRAL.
| No | Search items |
| #1 | MeSH descriptor: [Alzheimer Disease] explode all trees |
| #2 | alzheimer∗ or AD:ti,ab,kw (Word variations have been searched) |
| #3 | #1 or #2 |
| #4 | Jihwangeumja:ab,ti |
| #5 | ‘Dihuang Yinzi’:ab,ti |
| #6 | #4 or #5 |
| #7 | #3 and #6 |
