About: http://webisa.webdatacommons.org/202309776

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	Vitamin D is mainly produced when skin is exposed to ultraviolet rays from sunlight.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org