About: http://webisa.webdatacommons.org/164773909

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	Because most of the data are derived from registries and cross-sectional studies, little is known about incidence of occupational asthma (OA) during the first years after inception of exposure.
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov