https://kidshealth.org/en/teens/bursitis.html
Bursitis (for Teens) | Nemours KidsHealth
Bursitis, an irritation of the small fluid sacs that provide cushioning in some joints, is often caused by sports-related injuries or repeated use of a...
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https://www.news-medical.net/health/Bursitis-and-Osteoarthritis-Similarities-and-Differences.aspx
Bursitis and Osteoarthritis Similarities and Differences
Bursitis and osteoarthritis are two conditions which cause significant joint pain and can reduce your ability to perform physical activities or everyday tasks.
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