John J. Miller, MD, shares history of the DSM. What knowledge from previous iterations and what new additions in this iteration can be useful in diagnosing?

Dr Miller is medical director, Brain Health, Exeter, New Hampshire; Editor in Chief, Psychiatric Times^TM; staff psychiatrist, Seacoast Mental Health Center, Exeter; Consulting Psychiatrist, Exeter Hospital, Exeter; Consulting Psychiatrist, Insight Meditation Society, Barre, Massachusetts.