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Previous Volume 340:1766-1767 June 3, 1999 Number 22 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: In their review of attention-deficit–hyperactivity disorder (ADHD), Zametkin and Ernst (Jan. 7 issue)¹ acknowledged the eightfold rise in the use of stimulants in the United States over the past decade. They did not mention that the use of methylphenidate (Ritalin) in the United States accounts for 90 percent of the use worldwide.² In the United States, per capita use of methylphenidate varies sixfold among states.³ Within individual states, analyses based on ZIP Codes show 20-fold variations from one community to the next.³ Such large variations in the use of stimulants point to factors other than neurologic ones . . . [Full Text of this Article]

References

This article has been cited by other articles:

• Palombini, L., Pelayo, R., Guilleminault, C. (2004). Efficacy of Automated Continuous Positive Airway Pressure in Children With Sleep-Related Breathing Disorders in an Attended Setting. Pediatrics 113: e412-e417 [Abstract] [Full Text]