New York City Department of Buildings. “Elevator Safety,” New York City Government, http://www.nyc.gov/html/dob/html/news/elevator_safety.shtml.

Lars-Göran öst, “Rapid Treatment of Specific Phobia,” in Phobias: A Handbook of Theory, Research and Treatment, ed. Graham C.L. Davey (Hoboken, NJ: Wiley, 1997), 227–246.

David Ropeik, and George Gray, Risk: A Practical Guide for Deciding What’s Really Safe and What’s Really Dangerous in the World Around You, Appendix 1 (Houghton-Mifflin: Boston, 2002).

Martin E. Seligman, “Phobias and Preparedness,” Behavior Therapy 2, No. 3 (1971): 307.

Murray Stein, Kerry Jang, and John W. Livesley, “Heritability of Social Anxiety-Related Concerns and Personality Characteristics: A Twin Study,” Journal of Nervous and Mental Diseases 190, No. 4 (2002): 219.

Andrew J. Tomarken, Susan Mineka, and Michael Cook, “Fear-Relevant Selective Associations and Covariation Bias,” Journal of Abnormal Psychology 98, No. 4 (1989): 381.

Michael E. Addis et al., “Effectiveness of Cognitive-Behavioral Treatment for Panic Disorder versus Treatment as Usual in a Managed Care Setting: 2-Year Follow-Up,” Journal of Consulting and Clinical Psychology 74, No. 2 (2006): 377.

American Psychiatric Association, Diagnostic and Statistical Manual of Mental Disorders, 4th-TR ed. (Washington, DC: Author, 2000).

Roger Baker et al., “Emotional Processing and Panic,” Behaviour Research and Therapy 42, No. 11 (2004): 1271.

David H. Barlow, Anxiety and its Disorders: The Nature and Treatment of Anxiety and Panic (New York: Guilford, 1988).

Sabine Kroeze et al., “Automatic Negative Evaluation of Suffocation Sensations in Individuals with Suffocation Fear,” Journal of Abnormal Psychology 114, No. 3, 466.

Jill T. Levitt et al., “The Effects of Acceptance versus Suppression of Emotion on Subjective and Psychophysiological Response to Carbon Dioxide Challenge in Patients with Panic Disorder,” Behavior Therapy 35, No. 4 (2004): 747.

Seung-Lark Lim and Ji-Hae Kim, “Cognitive Processing of Emotional Information in Depression, Panic, and Somatoform Disorder,” Journal of Abnormal Psychology 114, No. 1 (2005): 50.

Richard J. McNally, Panic Disorder: A Critical Analysis (Guilford: New York, 1994).

Norman B. Schmidt et al., “Does Coping Predict CO-Sub-2-Induced Panic in Patients with Panic Disorder?” Behaviour Research and Therapy 43, No. 10 (2005): 1311.

Jasper A.J. Smits et al., “Mechanism of Change in Cognitive-Behavioral Treatment of Panic Disorder: Evidence for the Fear of Fear Mediational Hypothesis,” Journal of Consulting and Clinical Psychology 72, No. 4 (2004): 646.

Myrna M. Weissman et al., “Panic Disorder and Cardiovascular/Cerebrovascular Problems: Results from a Community Survey,” American Journal of Psychiatry 147, No. 11 (1990): 1504.

Joan Welkowitz, “Panic and Comorbid Anxiety Symptoms in a National Anxiety Screening Sample: Implications for Clinical Interventions,” Psychotherapy: Theory, Research, Practice, Training 41, No. 1 (2004): 69.

Jose A. Amat et al., “Increased Number of Subcortical Hyperintensities on MRI in Children and Adolescents with Tourette’s Syndrome, Obsessive-Compulsive Disorder, and Attention Deficit Hyperactivity Disorder,” American Journal of Psychiatry 163, No. 6 (2006): 1106.

American Psychiatric Association, Diagnostic and Statistical Manual of Mental Disorders, 4th-TR ed. (Washington, DC: Author, 2000).

Nader Amir, Laurie Cashman, and Edna B. Foa, “Strategies of Thought Control in Obsessive-Compulsive Disorder,” Behaviour Research & Therapy 35, No. 8 (1997): 775.

Fernando R. Asbahr et al., “Obsessive-Compulsive Symptoms among Patients with Sydenham Chorea,” Biological Psychiatry 57, No. 9 (2005): 1073.

Susan G. Ball, Lee Baer and Michael W. Otto, “Symptom Subtypes of Obsessive-Compulsive Disorder in Behavioral Treatment Studies: A Quantitative Review,” Behaviour Research & Therapy 34 (1996): 47; Robert L. Leahy and Stephen J. Holland, Treatment Plans and Interventions for Depression and Anxiety Disorders (New York: Guilford, 1996).

David A. Clark, “Unwanted Mental Intrusions in Clinical Disorders: An Introduction,” Journal of Cognitive Psychotherapy 16, No. 2 (2002): 123.

Diana L. Feygin, James E. Swain, and James F. Leckman, “The Normalcy of Neurosis: Evolutionary Origins of Obsessive-Compulsive Disorder and Related Behaviors,” Progress in Neuro-Psychopharmacology & Biological Psychiatry 30, No. 5 (2006): 854.

R. J. Hodgson and S.J. Rachman, “Obsessional-Compulsive Complaints,” Behaviour Research and Therapy 15 (1977): 389.

Robert L. Leahy, “On My Mind,” The Behavior Therapist 30 (2007): 44–45.

Robert L. Leahy and Stephen J. Holland, Treatment Plans and Interventions for Depression and Anxiety Disorders (New York: Guilford, 2000).

James T. McCracken and Gregory L. Hanna, “Elevated Thyroid Indices in Children and Adolescents with Obsessive-Compulsive Disorder: Effects of Clomipramine Treatment,” Journal of Child and Adolescent Psychopharmacology 15, No. 4 (2005): 581.

Obsessive Compulsive Cognitions Working Group, “Cognitive Assessment of Obsessive-Compulsive Disorder,” Behaviour Research & Therapy 35, No. 7 (1997): 667.

Christine Purdon, “Thought Suppression and Psychopathology,” Behaviour Research and Therapy 37 (1999): 1029.

Christine Purdon and David A. Clark, “Obsessive Intrusive Thoughts in Nonclinical Subjects: II. Cognitive Appraisal, Emotional Response and Thought Control Strategies,” Behaviour Research and Therapy 32 (1994): 403.

Stanley Rachman, “Obsessions, Responsibility and Guilt,” Behaviour Research and Therapy 31 (1993): 149.

Stanley Rachman, “A Cognitive Theory of Obsessions,” Behaviour Research and Therapy 35 (1997): 793.

Stanley Rachman, The Treatment of Obsessions (New York: Oxford University Press, 2003).

Stanley Rachman and Padmal de Silva, “Abnormal and Normal Obsessions,” Behaviour Research & Therapy 16, No. 4 (1978): 233.

Paul M. Salkovskis and Joan Kirk, “Obsessive-Compulsive Disorder,” in Science and Practice of Cognitive Behaviour Therapy, eds. David M. Clark & Christopher G. Fairburn (New York: Oxford University Press, 1997) 179–208.

Paul Salkovskis et al., “Multiple Pathways to Inflated Responsibility Beliefs in Obsessional Problems: Possible Origins and Implications for Therapy and Research,” Behaviour Research and Therapy 37, No. 11 (1999): 1055.