1. Department of Emergency Medicine, University of California San Francisco, San Francisco, CA.
2. California Poison Control System, University of California San Francisco School of Medicine, San Francisco, CA.
3. Division of Cardiology, University of California San Francisco, San Francisco, CA.
4. Departments of Pharmacy and Emergency Medicine, University of California San Francisco Medical Center, San Francisco, CA
5. University of California San Francisco School of Pharmacy, San Francisco, CA.