Practice as a psychotherapeutic variable: an experimental analysis within single cases.
D000328:Adult; D001521:Behavior Therapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010698:Phobic Disorders / Q000628:therapy; D011214:Practice, Psychological; D011582:Psychological Theory; D011613:Psychotherapy