Vallejo, MD, DMD, M.C., Shapiro, MD, R.E., Lippy, BS, M.W., Lilly, PhD, C.L. and Brancazio, MD, L.R. 2020. Independent risk factors for chronic illicit substance use during pregnancy. Journal of Opioid Management. 16, 5 (Sep. 2020), 351–356. DOI:https://doi.org/10.5055/jom.2020.0590.