Assertion: knee osteoarthritis | /r/CapableOf | affect younger people
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Source sentences:
text: It is true that the likelihood of having osteoarthritis increases with age, but it is incorrect to claim that it is an "old person's disease" as hip and knee osteoarthritis can also affect younger people (Ackerman, Kemp, Crossley, Culvenor, & Hinman, 2017).