there is survey for 20 years from doctors that were done and only now we are getting the results. This is from 4 variety of surgeon's in london. Dr. Mount is the expert Dr. to ask. I have been in testing for 13 years with doc's in ontario. And yahoo this is being now fought at surgeon's board of Ontario in T.O. This would include myself being barber surgeon first were professionals to prescribe it first place. That is why the pole red, white,blue symbolizing surgery. When that light was on the medicine was in.