About: http://webisa.webdatacommons.org/328007089

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	chronic production of endogenous reactive oxygen species (ROS) or ???free radicals??? was proposed in the 1950's94 and is still relevant to aging in joint tissues such as the articular cartilage.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov