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| Methods | Cases with ADHD |
| Participants | 181 participants with ADHD |
| Interventions | Switched medication from conventional immediate‐release preparations of methylphenidate to extended‐release tablets (OROS) |
| Outcomes | Types of developmental disorders, drug dosages, efficacy, adverse events, concomitant medication, other relevant problems, and so on, prior to switching the medications |
| Notes | The article is written in Japanese, and we have not yet been able to obtain a translation |
