1 McGill Emergency Medicine Program, Montreal, Québec, Canada Department of Pharmacy, McGill University Health Centre, Montreal, Québec, Canada McGill University Health Center, Centre Antipoison Quebec, Quebec City, Québec, Canada New Mexico Poison and Drug Information and Center, Department of Pharmacy Practice and Administrative Services, College of Pharmacy, University of New Mexico, Albuquerque, New Mexico Department of Anaesthesiology, Danish Poisons Information Center, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark Division of Medical Toxicology, Ronald O. Perelman Department of Emergency Medicine, New York University School of Medicine, New York, New York, bobhoffmd@gmail.com.