About: http://webisa.webdatacommons.org/176514555

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	However, the amount of bioavailable iron is very low, especially at neutral pH and in the presence of oxygen, due to formation of insoluble iron oxyhydroxide compounds, resulting in extremely low concentrations of free Fe3+.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov