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Authors
Obregón-Berg, Camilo https://orcid.org/0009-0006-2125-1417
Fuentealba-Donoso, Bruno https://orcid.org/0009-0006-8886-7160
Vidal, Isidora
Navarrete, Javiera https://orcid.org/0000-0002-8463-6473
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Article History
Received: 21 August 2025
Accepted: 3 February 2026
First Online: 14 February 2026
Declarations
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: This study did not involve human participants or animals. It is based solely on aggregated data from substances voluntarily submitted for chemical analysis. No personal or identifying information was collected, and no interaction with individuals was part of the data collection process. As such, ethical approval was not required under local or institutional guidelines.
: Not applicable.
: Two of the authors (COB and IV) are board members of RD, the organization that operates the peer-led drug checking service described in this case study. The authors declare no other competing interests.
