Study looks at effects of Ritalin on children with ADHD
…The worldwide prevalence of ADHD: a systematic review and metaregression analysis. Am J Psychiatry 164(6):942-948, 2007. See also USA statistics, Centre for Disease Control, https://www.cdc.gov/ncbddd/adhd/data.html https://www.ncbi.nlm.nih.gov/pubmed/21970086 Razi Berry is the…