How to lower or eliminate your risk of knee arthritis, according to a new study - CNN

1. How to lower or eliminate your risk of knee arthritis, according to a new study  CNN
2. Early Knee Osteoarthritis: Exercise Therapy's Golden Window  Medscape
3. Protect your knees: the top trainer’s rules  The Times
4. Strong leg muscles could help combat arthritis in the knee, study says  AOL