title: Expectancy factors in the treatment of fear: methodological and theoretical issues.
mesh_terms: D001290:Attitude; D001521:Behavior Therapy; D003887:Desensitization, Psychologic; D005239:Fear; D006801:Humans; D007721:Knowledge of Results, Psychological; D009042:Motivation; D010698:Phobic Disorders / Q000628:therapy*; D010919:Placebos; D011582:Psychological Theory
chemical_list: D010919:Placebos