An Internet-based emotion regulation intervention versus no intervention for non-suicidal self-injury in adolescents: a statistical analysis plan for a feasibility randomised clinical trial. - Olsen, Markus Harboe; Morthorst, Britt; Pagsberg, Anne Katrine; Heinrichsen, Michella; Møhl, Bo; Rubæk, Lotte; Bjureberg, Johan; Simonsson, Olivia; Lindschou, Jane; Gluud, Christian; Jakobsen, Janus Christian (Trials, 2021)