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| Keywords | Database | Date | Number of results |
| Attention deficit hyperactivity disorder (ADHD) | PubMed | 7/11/2020 | 37,126 |
| Oppositional defiant disorder (ODD) | PubMed | 7/11/2020 | 1,150 |
| Conduct disorder (CD) | PubMed | 7/11/2020 | 1,244 |
