This is a must read for anyone who has this disease. This silent disease that progresses for decades, without any outward signs needs the patient to understand the therapies that are available to help. Dr. Snead has researched all of the medical data so that you may be informed of and have a better choice of treatments. This is a highly technical book which your Dr. may not be aware of and you should. Questions and Answers are clearly examined so there should be no question of proper treatment and care.