Parmar, Samir T., and Brittany Kasumi Yarnell. “An Assessment of Overdose Surveillance at a Local Public Health Department”. Online Journal of Public Health Informatics 11, no. 1 (May 30, 2019). Accessed March 30, 2020. https://journals.uic.edu/ojs/index.php/ojphi/article/view/9907.