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Clinical features - Letter to the editor

Do you know about Kratom?

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Declaration of interest

The contents of the paper and the opinions expressed within are those of the authors, and it was the decision of the authors to submit the manuscript for publication.

Review disclosure

A reviewer on this manuscript has disclosed that they receive financial support by a research grant from Pfizer. The other reviewers on this manuscript have no other relevant financial relationships or otherwise to disclose.

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