Covitz, BS, MA, NRP, J. A., A. Richter, PhD, and D. J. MacKinnon, PhD. “911 and the Area Code from Which You Call: How to Improve the Disparity in California’s Emergency Medical Services”. Journal of Emergency Management, vol. 18, no. 3, May 2020, pp. 247-60, doi:10.5055/jem.2020.0470.