About: http://webisa.webdatacommons.org/194112908

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	Participants who reported using any illicit drug, except marijuana or hashish, or prescription drug without a prescription and had never reported using any of those drugs at an earlier period were classified as incident drug use cases.
http://www.w3.org/ns/prov#wasQuotedFrom	jamanetwork.com