Department of Emergency Medicine, University of California, Davis School of Medicine, Sacramento, California, USA.

Dr. John Richards is a Professor of Emergency Medicine at the University of California, Davis Medical Center, a Level I trauma and tertiary care center serving Central and Northern California. His research interests include the treatment of acute toxicity from drugs of abuse, specifically cocaine, amphetamine derivatives such as methamphetamine and MDMA (Ecstasy), cannabis, opioids, and alcoholism. His knowledge and experience with the use of β-blockers is a result of treating these and many other disorders in the Emergency Department for over two decades. Another aspect of his research is the analysis of medical mythology and outdated treatment guidelines using an evidence-based approach.