Disclaimer
Development of this statement was sponsored jointly by the American College of Medical Toxicology (ACMT) and the American Academy of Clinical Toxicology (AACT). While individual practitioners may differ, these are the positions of the ACMT and AACT at the time of approval on November 15, 2012, after a review of the issue and pertinent literature.
Declaration of interest
The author reports no declarations of interest. The author alone is responsible for the content and writing of the paper.