| pubmed-article:21192143 | pubmed:abstractText | Stimulants are the most effective drugs for attention-deficit/hyperactivity disorder (ADHD) symptoms. The purpose of this study was to explore the intervention effect of methylphenidate, a commonly used stimulant, on cognitive performance in ADHD children and whether the effect is associated with age, sex, different subtypes of ADHD, and drug dosage. | lld:pubmed |
