About: http://webisa.webdatacommons.org/256457831

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	Each investigator obtained prospective approval of the trial protocol, protocol amendments, informed consent forms, and other relevant documents from the appropriate institutional review board or independent ethics committee.
http://www.w3.org/ns/prov#wasQuotedFrom	jamanetwork.com