From fields of poppies to a national crisis / Michael T. Compton, M.D., M.P.H., Marc W. Manseau, M.D., M.P.H -- Prescription opioids / Julian Santaella-Tenorio, M.P.H., Luis E. Segura, M.D., M.P.H., Vitor S. Tardelli, M.D., Leila M. Vaezazizi, M.D., Silvia S. Martins, M.D., Ph.D -- Heroin and other illicit opioids / Abhishek Jain, M.D., Carl E. Fisher, M.D -- Opioid overdose, toxicity, and poisoning / Nathaniel Kunzler, M.D., Katherine Devin, M.D., Kavita Babu, M.D., Edward W. Boyer, M.D., Ph.D -- The opioid epidemic : social determinants and health inequities / Leila M. Vaezazizi, M.D., Julie Netherland, Ph.D., Helena Hansen, M.D., Ph.D -- Opioid use disorder and medical comorbidity / Aaron Fox, M.D., M.S., Benjamin Hayes, M.D., M.P.H., M.S.W -- Opioid use disorder and psychiatric comorbidity / Marc W. Manseau, M.D., M.P.H., Michael T. Compton, M.D., M.P.H -- Assessment and care of patients with opioid use disorder / Snehal Bhatt, M.D., Bellelizabeth Foster, M.D., Vanessa Jacobsohn, M.D., Paul Romo, M.D., Tyler Seybert, M.D., Roxanne Russell, M.D -- Opioid withdrawal management and transition to treatment / Matisyahu Shulman, M.D., Arthur Robin Williams, M.D., M.B.E., Adam Bisaga, M.D -- Medication-assisted treatment for opioid use disorders / Leslie Marino, M.D., M.P.H., Sarah Oreck, M.D., M.S., Samuel Kolander, M.D -- Psychosocial approaches to the treatment of opioid use disorder / Karen L. Dugosh, Ph.D., David S. Festinger, Ph.D., S. Brook Burkley, M.S.W -- Harm reduction : caring for people who misuse opioids / Sharon Stancliff, M.D., Bethany Medley, M.S.W., William Mathews, R.P.A-C -- Prevention of opioid misuse and addiction through policy approaches / Tauheed Zaman, M.D., Leo Beletsky, J.D., M.P.H., Keith A. Hermanstyne, M.D., M.P.H., M.S.H.P.M -- Performance measures and quality improvement for the opioid epidemic / Arthur Robin Williams, M.D., M.B.E.