Intensive specialised multi‐family therapy for multi‐stressed families: Therapeutic alliance as predictor for effectiveness. - van Beek, Yolanda; Hessen, David; Levelt, Lisa; Beijer, Daniëla; Rijnberk, Corine; Maras, Athanasios; Overbeek, Mathilde M. (Journal of Family Therapy, 2023)