Harry,
Here is a link to a YouTube video given by an Australian doctor, Dr. Gillman, speaking on the subject of ED treatments following a RP. The treatment protocol looks to be very similar to the protocol suggested by Dr Muhall. I included a link to a talk by Dr. Muhall as well.
Dr Gillman
/youtu.be/pWyMzYp1UXgDr Muhall
/youtu.be/ie8NkOu2VNAFG