Harch Hyperbarics  www.harchhyperbarics.com Providing hyperbaric oxygen therapy and undertaking research. Includes discussion of neurological applications and research finding, plus a meetings calendar. Harvey, Louisiana, USA.

The Hyperbaric Medicine Group  www.hbotgroup.com Provides consulting and ongoing management services as well as conducting research projects. Explains principles and applications of this treatment. Salt Lake City, Utah, USA.

Hyperbarics International  www.hyperbaricsinternational.com Offers a course in advanced chamber and medical techniques to physicians, dive supervisors and rescue personnel. Includes detailed curriculum and possible applications. Key Largo, Florida.

National Baromedical Services  www.baromedical.com Provides education, research and consulting services in North America, with an electronic library database and information on training. Includes details of The Baromedical Research Foundation.