A two-year follow-up on systematic desensitization with data pertaining to the external validity of laboratory fear assessment.
D000818:Animals; D001521:Behavior Therapy; D003887:Desensitization, Psychologic; D005239:Fear; D005500:Follow-Up Studies; D006801:Humans; D010698:Phobic Disorders / Q000628:therapy; D012911:Snakes; D011795:Surveys and Questionnaires