Assertion: osteoarthritis | /r/Causes | joint pain
Facets:
Source sentences:
text: Osteoarthritis (OA) causes joint pain in around 8.5 million people in the UK.
text: Rheumatoid arthritis and osteoarthritis both cause joint pain and stiffness.
text: Osteoarthritis causes joint pain and stiffness, which may come and go.