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Yeragani, Vikram K and Mallavarapu, Mallika and Radhakrishna, Rao KA and Tancer, Manuel and Uhde, Thomas (2004) Linear and nonlinear measures of blood pressure variability: Increased chaos of blood pressure time series in patients with panic disorder. In: Depression and Anxiety, 19 (2). pp. 85-95.
Yeragani, Vikram Kumar and Rao, Radhakrishna KA and Tancer, Manuel and Uhde, Thomas (2003) Paroxetine decreases respiratory irregularity of linear and nonlinear measures of respiration in patients with panic disorder. In: Biological Psychiatry, 53 (8). 135S-135S.