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METHYLPHENIDATE PRODUCES A FALSE-POSITIVE URINE AMPHETAMINE SCREEN

Manzi, Shannon PharmD*; Law, Terence BS, MT (ASCP)SC; Shannon, Michael W. MD, MPH

Special Features: Letters

Departments of *Pharmacy and †Laboratory Medicine and ‡Division of Emergency Medicine

Children’s Hospital Boston

Boston, Massachusetts

© 2002 Lippincott Williams & Wilkins, Inc.