Boltunova, MD, Alina, Robert S. White, MD, MS, Selaiman Noori, MD, Stephanie A. Chen, BA, Licia K. Gaber-Baylis, BA, and Roniel Weinberg, MD. 2019. “Pre-Existing Opioid Use Disorder and Postoperative Outcomes After Appendectomy or Cholecystectomy: A Multi-State Analysis, 2007-2014”. Journal of Opioid Management 15 (3):235-51. https://doi.org/10.5055/jom.2019.0507.