| Study | Reason for exclusion |
|---|---|
| Brans 1998b | This study is a subgroup analysis of the study included in the review. They have looked at EMG changes after BtA or trihexyphenidyl. |
| Study | Reason for exclusion |
|---|---|
| Brans 1998b | This study is a subgroup analysis of the study included in the review. They have looked at EMG changes after BtA or trihexyphenidyl. |