TY - JOUR KW - kratom KW - mitragyna speciosa KW - Opioids KW - rural drug use KW - Substance use disorder KW - substance use disorder treatment AU - J. M. Rogers AU - K. E. Smith AU - J. C. Strickland AU - D. H. Epstein A1 - AD - Real-world Assessment, Prediction, and Treatment Unit, National Institute on Drug Abuse Intramural Research Program, Baltimore, MD, United States.; Real-world Assessment, Prediction, and Treatment Unit, National Institute on Drug Abuse Intramural Research Program, Baltimore, MD, United States.; Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, United States.; Real-world Assessment, Prediction, and Treatment Unit, National Institute on Drug Abuse Intramural Research Program, Baltimore, MD, United States. BT - Frontiers in pharmacology C5 - Education & Workforce; Opioids & Substance Use DO - 10.3389/fphar.2021.789075 JF - Frontiers in pharmacology LA - eng M1 - Journal Article PB - Rogers, Smith, Strickland and Epstein PY - 2021 SN - 1663-9812; 1663-9812; 1663-9812 SP - 789075 T1 - Kratom Use in the US: Both a Regional Phenomenon and a White Middle-Class Phenomenon? Evidence From NSDUH 2019 and an Online Convenience Sample T2 - Frontiers in pharmacology TI - Kratom Use in the US: Both a Regional Phenomenon and a White Middle-Class Phenomenon? Evidence From NSDUH 2019 and an Online Convenience Sample U1 - Education & Workforce; Opioids & Substance Use U2 - 34987402 U3 - 10.3389/fphar.2021.789075 VL - 12 VO - 1663-9812; 1663-9812; 1663-9812 Y1 - 2021 Y2 - Dec 20 ER -