About: http://webisa.webdatacommons.org/189982771

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	Weakness, disuse, fractures, surgeries, traumatic injuries, illness and other causes have been known to cause loss of ability to extend or flex the knee joint or elbow joint.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au