Melzig, C.A., Weike, A.I., & Hamm, A.O., (2005). Anticipatory Anxiety as a Model for Studying Panic Disorder. Journal of Psychophysiology, 19(2), 132.

Mineka, Susan, & Zinbarg, Richard. (2006). Contemporary Learning Theory Perspective on the Etiology of Anxiety Disorders: It’s Not What You Thought It Was. American Psychologist, 61(1), 10-26.

Weertman, Anoek, Arntz, Arnoud, Schouten, Erik, & Dreessen, Laura. (October 2005). Influences of Beliefs and Personality Disorders on Treatment Outcome in Anxiety Patients. Journal of Consulting & Clinical Psychology, 73(5), 936-944.

    This study measured the effects of different Personality Disorders and the belief systems associated with them on treatment for patients with Anxiety Disorders. 398 outpatients were included in this study and the results showed that more Anxiety Disorder symptoms were present and the culmination of the study for the patients also afflicted with a Personality Disorder than for patients without.
    I thought this article would be useful and insightful in possibly expanding my topic to perhaps twisting it more towards the comorbidity of Panic Attacks with other Anxiety Disorders or even Anxiety Disorder with which Panic Attacks occur and other disorders.