" Debbie Nathan also puts a great deal of weight on a letter from Shirley Mason to Dr. Wilbur stating that her MPD was made up. Dr. Wilbur’s explanation was that the letter was based on resistance. Debbie Nathan takes the letter as a statement of the real truth. But if Shirley Mason was such an unreliable historian of her own trauma and mental health history, why should we take this single letter as the truth? If a person with a long history of treatment for alcoholism wrote a letter to her psychiatrist, in the middle of treatment, saying that she did not have a drinking problem, what would we conclude? "

― Colin A. Ross