Brain injured veteran Ben Parkinson can now walk up to two miles a day after starting hyperbaric oxygen treatment at Castle Craig Hospital. 

http://www.telegraph.co.uk/lifestyle/11376969/Oxygen-therapy-the-treatment-behind-servicemans-amazing-recovery.html

and

Daily Mail article on Ben Parkinson’s recovery

http://www.dailymail.co.uk/news/article-2954548/Britain-s-injured-surviving-soldier-left-coma-four-months-lost-legs-making-miracle-recovery-able-walk-two-miles-day.html