The materials contained herein represent the opinions of the authors and editors and should not be construed to be the action of either the respective regulatory agencies of the U.S.A. or of European Union, or the governments of its Member States, unless adopted pursuant to the laws, rules, and regulations of these legal entities.

Furthermore, nothing contained in the site is to be considered as the rendering of medical advice for specific cases and/or individual patients, and all readers are responsible for obtaining such advice from their own doctor.

This forum, and any forms and agreements herein, are intended for educational and commercial purposes. It is hoped, however, that this publication will serve as an useful introduction to a rapidly expanding area of medical science and health care.

The rapid progress of this medical field requires the prudent reader to verify that the regulations and citations discussed herein have not changed since the date of publication and are in fact true. Because of the broad scope of topics herein discussed, it is not possible to provide an exhaustive analysis of any particular aspect of such treatments in a single publication.