About: http://webisa.webdatacommons.org/162040249

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	As shown above, even the simplest variables commonly used to describe the study sample, such as age and gender, were lacking in most studies.
http://www.w3.org/ns/prov#wasQuotedFrom	scielosp.org