Progressive systemic sclerosis is a generalized disorder of connective tissue in which there is thickening of dermal collagen bundles, and fibrosis and vascular abnormalities in internal organs. ... Found on http://en.wikipedia.org/wiki/Progressive_systemic_sclerosis
Progressive systemic sclerosis is a generalized disorder of connective tissue in which there is thickening of dermal collagen bundles, and fibrosis and vascular abnormalities in internal organs. ...