About: http://webisa.webdatacommons.org/404210122

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	it difficult to distinguish clearly between asthma and COPD, especially in patients who have smoked.
http://www.w3.org/ns/prov#wasQuotedFrom	getasthmahelp.org