Gary Null's book, "Death By Medicine" was the combined effort of 4 doctors, 3 of which are MDs. Being that Stephen Barrett was said to discredit Gary Null, I think it's only fair to look at some news concerning Stephen Barrett.
http://www.anh-europe.org/news/quack...aves-home-town
Anyone who takes the time to read the whole link is going to be amazed.