About: http://webisa.webdatacommons.org/220345055

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	To study that impact, we conducted a retrospective study including patients aged more than 40 years old with irreversible airflow limitation between August 2000 and July 2008 in a medical center in Taiwan.
http://www.w3.org/ns/prov#wasQuotedFrom	lww.com