About: http://webisa.webdatacommons.org/419720671

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	Second, we were unable to distinguish different types of peer relationships (e.g. romantic versus friendship) which may have differential impact on risk of nicotine dependence.
http://www.w3.org/ns/prov#wasQuotedFrom	pubmedcentralcanada.ca