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<http://webisa.webdatacommons.org/prov/276434291>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/284164357> .
<http://webisa.webdatacommons.org/284164357>	<http://www.w3.org/ns/prov#value>	"Symptoms and disease progression of all forms of Niemann-Pick vary from person to person." .