About: http://webisa.webdatacommons.org/219109726

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	The first limitation is that this sample was a volunteer sample recruited through predominately African-American groups.
http://www.w3.org/ns/prov#wasQuotedFrom	hindawi.com