Disclaimer: All material provided by echl.org are for educational and reference purpose only. It should not be used as a substitute for professional medical care or attention by a qualified practitioner, nor should it be inferred as such. Always check with your doctor if you have any questions or concerns about a specific condition on arthritis. echl.org will not be responsible or liable on how materials are used. Also note that while echl.org frequently updates its' contents, medical information changes rapidly. Therefore, some information may be out of date.