About: http://webisa.webdatacommons.org/439722522

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	For selection of studies, we carried out a systematic review of the electronic databases including PubMed, EMBASE, and MEDLINE independently by two investigators (BD.Q and JQ.W).
http://www.w3.org/ns/prov#wasQuotedFrom	plos.org