Since 1961, when pain therapy was introduced by Bonica, the- re have been world-wide efforts to establish basic regimens for the treatment of chronic pain. Yet many patients still continue to suffer from intractable pain despite the availa- bility of effective treatment that would greatly improve their quality of life. The lack of specialists familiar with recent developments is one of the causes. There is con- sequently a great demand for interdisciplinary pain clinics and specialist training programs. This book constitutes both a valuable introduction and an overview of current basic regimens and the latest sophisticated techniques in pain therapy.