About: http://webisa.webdatacommons.org/32494639

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	We have argued that for a variety of reasons, including the difficulty of getting the contrast administered, that the contrast is not necessary.
http://www.w3.org/ns/prov#wasQuotedFrom	jamanetwork.com