Drzał, E. et al. 2026. Difficulties in Emotion Regulation and the Frequency and Severity of Non-Suicidal Self-Injury in Psychiatrically Hospitalized Adolescents : A Clinicaland Correlational Study. Current Problems of Psychiatry. 26, (Apr. 2026), 269–288. DOI:https://doi.org/10.12923/2353-8627/2025-0024.