4 Marie Marie I I Lahaxe Lahaxe L L Benveniste Benveniste O O Long-term outcome of patients with polymyositis/ dermatomyositis and anti-PM-Scl antibody Long-term outcome of patients with polymyositis/ dermatomyositis and anti-PM-Scl antibody British Journal of Dermatology. This evidence concerns the gene PRB1 and dermatomyositis.