Internet-delivered emotion regulation therapy for adolescents engaging in non-suicidal self-injury and their parents: A qualitative, online focus group study. - Christensen SH; Heinrichsen M; Møhl B; Rubæk L; Byrialsen KK; Ojala O; Hellner C; Pagsberg AK; Bjureberg J; Morthorst B (Psychology and psychotherapy, 2025)