David E. Greenan, EdD, is Executive Director of The Minuchin Center for the Family, where he teaches family therapy and consults to agencies that serve inner-city poor families. He is also a psychologist and family therapist in private practice in New York City.

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Gil Tunnell, PhD, is a clinical psychologist in full-time private practice in New York City. He supervises and trains psychiatric residents and psychology interns in family therapy at Beth Israel Medical Center.