About: http://webisa.webdatacommons.org/4630488

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	f variables such as age at onset, symmetry of arthritis, and ANA status to define subsets (22).
http://www.w3.org/ns/prov#wasQuotedFrom	pubmedcentralcanada.ca