Non-violent resistance parental training versus treatment as usual for children and adolescents with severe tyrannical behavior: a randomized controlled trial oleh Erica Fongaro, Erica Fongaro, Safa Aouinti, Marie-Christine Picot, Marie-Christine Picot, Florence Pupier, Haim Omer, Nathalie Franc, Diane Purper-Ouakil, Diane Purper-Ouakil