Impact of UNODC/WHO S-O-S (stop-overdose-safely) training on opioid overdose knowledge and attitudes among people at high or low risk of opioid overdose in Kazakhstan, Kyrgyzstan, Tajikistan and Ukraine. - Dietze, Paul; Colledge-Frisby, Samantha; Gerra, Gilberto; Poznyak, Vladimir; Campello, Giovanna; Kashino, Wataru; Dzhonbekov, Dzhonbek; Kiriazova, Tetiana; Nikitin, Danil; Terlikbayeva, Assel; Horsburgh, Kirsten; Busse, Anja; et al. (Harm Reduction Journal, 2025)