Mary Ann Howland, PharmD, DABAT, FAACT Clinical Professor of Pharmacy, St. Johns University College of Pharmacy; Consultant, Department of Emergency Medicine, Bellevue Hospital Center and New York University Medical Center; Senior Consultant in Residence, New York City Poison Center, New York, New York. McGraw-Hill authors represent the leading experts in their fields and are dedicated to improving the lives, careers, and interests of readers worldwide McGraw-Hill authors represent the leading experts in their fields and are dedicated to improving the lives, careers, and interests of readers worldwide McGraw-Hill authors represent the leading experts in their fields and are dedicated to improving the lives, careers, and interests of readers worldwide