| Study | Reason for exclusion |
|---|---|
| Fillit 1986 | not RCT |
| Fillit 1994 | not RCT |
| Honjo 1989 | Not RCT |
| Kantor 1973 | Only used hospital adjustment scores and no cognitive tests |
| Ohkura 1994a | Not RCT |
| Ohkura 1994b | Not RCT |
| Ohkura 1995 | Not RCT |
| Rigaud 2003 | Comparison between HRT + rivastigmine vs. placebo + rivastigmine: HRT did not give further improvement over rivastigmine alone |
| Yoon 2003 | Open label |
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