Here's something to study up on! Stem cell research. This stuff looks promising, and there are a lot of studies going on around the world. Use your standard everyday search engine. I started off with: stem cell erectile dysfunction.
One or two docs at the VA told me, maybe....10 years down the road. I'll give it 5 to 6.
Also look up: stem cell + any other medical condition. I've read about near miricals at a clinic in Germany for healing of spinal cord injuries.
Good luck to all.