scleroderma prognosissystemic sclerosis prognosisdiffuse scleroderma prognosislimited scleroderma prognosisdiffuse systemic sclerosis prognosisscleroderma sine scleroderma prognosisprognosis for cholangiocarcinomaneurofibromatosis prognosispsoriasis prognosismyasthenia prognosismesothelioma prognosisasbestosis prognosis