Overexpression of ubiquitin-specific peptidase 15 in systemic sclerosis fibroblasts increases response to transforming growth factor β by Galant, C, Marchandise, J, Stoenoiu, MS, Ducreux, J, De Groof, A, Pirenne, S, Van Den Eynde, B, Houssiau, FA, Lauwerys, BR