About: http://webisa.webdatacommons.org/129127057

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	Black Americans generally have 50-75% as much serum 25(OH)D as white Americans, and vitamin D is now thought to reduce the risk of incidence and mortality for 18 types of cancer.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov