In 2013, U.S. health care expenditures for ADHD totaled $23 billion (
http://www.tandfonline.com/doi/full/10.1080/15374416.2017.1417860
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In 2016, a weighted estimate of 6.1 million U.S. children 2–17 years of age (9.4%) had ever received an ADHD diagnosis
