Discordance between self-reported and detected synthetic opioids reveals cychlorphine emergence among people who inject drugs in Estonia.

Abel-Ollo K, Riikoja A, Barndõk T, Vorobjov S, Oja M, Des Jarlais D, Reile R, Uusküla A.

Int J Drug Policy. 2026 Sep 22;157(Pt A):105520. doi: 10.1016/j.drugpo.2026.105520. Epub ahead of print. PMID: 42785038.