Procedural variation in behavioral avoidance tests.
D000818:Animals; D001007:Anxiety / Q000175:diagnosis*; D001521:Behavior Therapy; D005239:Fear; D005260:Female; D006801:Humans; D010555:Personality Inventory; D010698:Phobic Disorders / Q000628:therapy*; D012649:Self Concept; D012911:Snakes