About: http://webisa.webdatacommons.org/429191024

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	Trials had to compare inhaled corticosteroids with placebo or systemic corticosteroids, and must have evaluated the effectiveness of the intervention one to four hours after initiating therapy.
http://www.w3.org/ns/prov#wasQuotedFrom	aafp.org