About: http://webisa.webdatacommons.org/445171369

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Low magnesium levels often are not associated with symptoms; however, severe magnesium deficiency can be associated with symptoms such as muscle weakness and cramping.
http://www.w3.org/ns/prov#wasQuotedFrom	dummies.com