COLABORADORES

Doctor Arthur Freeman, School of Medicine in the Department of Psychiatry, University of Pennsylvania, Filadelfia, Pennsylvania. Doctor James Pretzer, Cleveland Center for Cognitive Therapy, Cleveland, Ohio. Doctora Denise D. Davis, Vanderbilt University, Nashville, Tennessee. Doctora Barbara Fleming, Case Western Reserve University y Cleveland Center for Cognitive Therapy, Cleveland, Ohio. Doctora Regina Ottaviani, Cognitive Therapy Center, Chevy Chase, Maryland. Doctora Judith Beck, Center for Cognitive Therapy, University of Pennsylvania, Filadelfia, Pennsylvania. Doctora Karen M. Simón, Center for Cognitive Therapy, University of Pennsylvania, Filadelfia, Pennsylvania. Doctora Christine Padesky, NewportBeach Center for Cognitive Therapy, Newport Beach, California. Doctor James Meyer, Depression Treatment Center, Denver, Colorado. Doctor Lawrence Trexler, Friends Hospital, Filadelfia, Pennsylvania.