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| Study | Reason for exclusion |
|---|---|
| Anon 2009 | Review of Johnson 2009 |
| Doebel 2005 | Overview of articles and trials of nutrients in children with ADHD |
| Harding 2003 | Not randomised |
| Joshi 2006 | Pre‐post study |
| Richardson 2002 | The Conners cut‐off score used as an inclusion criteria was not clear |
ADHD: attention deficit hyperactivity disorder
