About: http://webisa.webdatacommons.org/221677070

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	Positive urine toxicology screen for narcotics, amphetamines, or sedative hypnotics or self-reported drug use, other than cannabis, alcohol or nicotine, in the past 30 days
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov