Perhaps the Virtual Healing Machine could help some coma patients in the future.
I’m interested and doing research. I'll keep you posted.
I found “Coma: Awakening Loved Ones with Hypnosis” by Iris K. Barratt - http://www.amazon.com/Coma-Awakening-Loved-Ones-Hypnosis/dp/1893087166
I got my copy of the tape by contacting Ms. Barratt.
Good health to you!
For a free mind/body healing tool, please see “The Virtual Healing Machine” - https://sites.google.com/site/thevirtualhealingmachine/
Any and all of my communications is not medical advice. See full disclaimers at site above.