For Better or Worse: Self-reported Changes in Kratom and Other Substance Use as a Result of the COVID-19 Pandemic by Jeffrey M Rogers, Kirsten E Smith, Destiny Schriefer, David H Epstein

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Were self-described introverts 'immune' to increased drug use and entrapment during the pandemic? by Leigh V. Panlilio, Anysia Lee, Kirsten E. Smith, David H. Epstein

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Kratom Use in the US: Both a Regional Phenomenon and a White Middle-Class Phenomenon? Evidence From NSDUH 2019 and an Online Convenience Sample by Jeffrey M. Rogers, Kirsten E. Smith, Justin C. Strickland, David H. Epstein

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Editorial: The Pharmacology of Kratom and Its Alkaloids by Oliver Grundmann, Christopher R. McCurdy, Darshan Singh, Kirsten E. Smith, Marc T. Swogger

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Evaluating health information provided to kratom consumers by good manufacturing practice-qualified vendors by Katherine Hill, Stephen Gibson, Oliver Grundmann, Kirsten E. Smith, Jonathan Ballard, Corneliu N. Stanciu

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Examining the paradoxical effects of kratom: a narrative inquiry by Kirsten E. Smith, Jeffrey D. Feldman, Kelly E. Dunn, Christopher R. McCurdy, Stephanie T. Weiss, Oliver Grundmann, Albert Garcia-Romeu, Janeen Nichels, David H. Epstein

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Nonfatal opioid overdoses before and after Covid-19: Regional variation in rates of change. by Albert J Burgess-Hull, Kirsten E Smith, Leigh V Panlilio, Destiny Schriefer, Kenzie L Preston, Aliese Alter, Christopher Yeager, Timothy Chizmar, Ted Delbridge, Kenan Zamore, Jeff Beeson, David H Epstein

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Quality of life during a randomized trial of a therapeutic-workplace intervention for opioid use disorder: Web-based mobile assessments reveal effects of drug abstinence and access... by Jeremiah W. Bertz, Kirsten E. Smith, Leigh V. Panlilio, Samuel W. Stull, David Reamer, Marie-Louise Murville, Michael Sullivan, August F. Holtyn, Forrest Toegel, David H. Epstein, Karran A. Phillips, Kenzie L. Preston

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Current and Future Potential Impact of COVID-19 on Kratom (Mitragyna speciosa Korth.) Supply and Use by Darshan Singh, Paula N. Brown, Eduardo Cinosi, Eduardo Cinosi, Ornella Corazza, Jack E. Henningfield, Jack E. Henningfield, Albert Garcia-Romeu, Christopher R. McCurdy, Lance R. McMahon, Walter C. Prozialeck, Kirsten E. Smith, Marc T. Swogger, Charles Veltri, Zach Walsh, Oliver Grundmann

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Kratom withdrawal: Discussions and conclusions of a scientific expert forum by Jack E. Henningfield, Marek C. Chawarski, Albert Garcia-Romeu, Oliver Grundmann, Norsyifa Harun, Zurina Hassan, Christopher R. McCurdy, Lance R. McMahon, Abhisheak Sharma, Mohammed Shoaib, Darshan Singh, Kirsten E. Smith, Marc T. Swogger, Balasingam Vicknasingam, Zachary Walsh, Daniel W. Wang, Marilyn A. Huestis

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