David M. Allen, M.D. is the author of the book, How Dysfunctional Families Spur Mental Disorders: A Balanced Approach to Resolve Problems and Reconcile Relationships. He is professor emeritus of Psychiatry and the former director of Psychiatric Residency Training at the University of Tennessee Health Science Center in Memphis, a position he held for 16 years. Prior to that he was in the private practice in psychiatry in Southern California for 13 years during the advent of managed care health insurance. Additionally, he has done research into personality disorders and is a psychotherapy theorist. He is the author of three books for psychotherapists: A Family Systems Approach to Individual Psychotherapy, Deciphering Motivation in Psychotherapy, and Psychotherapy with Borderline Patients: an Integrated Approach, as well as numerous journal articles and book chapters. He is the associate editor of the Journal of Psychotherapy Integration and a former treasurer of the Association for Research in Personality Disorders. He received his medical degree from U.C. San Francisco, and his psychiatric residency at the Los Angeles County - University of Southern California Medical Center.