The Emmes Corporation today announced that scientists and health professionals from the company, LDS Hospital in Salt Lake City, Utah, Lovelace Biomedical Environmental Research Institute in Albuquerque, New Mexico, and the U.S. Army Medical and Materiel Development Activity at Fort Detrick, Maryland, have completed a multi-year clinical trial testing hyperbaric oxygen as an intervention for U.S. military service members who have suffered mild traumatic brain injuries with persistent symptoms.