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<http://webisa.webdatacommons.org/prov/87110169>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/31692120> .
<http://webisa.webdatacommons.org/31692120>	<http://www.w3.org/ns/prov#value>	"Scleroderma literally means ???hard skin??? and causes tightening and thickening of the skin; but, it can also damage internal organs such as the heart, lungs, kidneys, esophagus, and gastrointestinal tract." .