Antonis A. Armoundas and Ki H. Chon. 2009. Method and apparatus for detection and treatment of autonomic system imbalance. .
 Yan Bai, Richard T. Mahon, Joseph C. White, Peter R. Brink, and Ki H. Chon. 2009. Impairment of the autonomic nervous function during decompression sickness in swine. Journal of applied physiology 106, 3: 1004–1009. Download
 Jerry Batzel, Giuseppe Baselli, Ramakrishna Mukkamala, and Ki H. Chon. 2009. Modelling and disentangling physiological mechanisms: linear and nonlinear identification techniques for analysis of cardiovascular regulation. Philosophical Transactions of the Royal Society of London A: Mathematical, Physical and Engineering Sciences 367, 1892: 1377–1391. Download
 Ki H. Chon, Shishir Dash, and Kihwan Ju. 2009. Estimation of respiratory rate from photoplethysmogram data using time–frequency spectral estimation. IEEE Transactions on Biomedical Engineering 56, 8: 2054–2063. Download
 Ki H. Chon, Christopher G. Scully, and Sheng Lu. 2009. Approximate entropy for all signals. IEEE engineering in medicine and biology magazine 28, 6. Download
 S. Dash, K. H. Chon, S. Lu, and E. A. Raeder. 2009. Automatic Real Time Detection of Atrial Fibrillation. Annals of Biomedical Engineering 37, 9: 1701–1709. Download
 Shishir Dash, Ernst Raeder, Snehraj Merchant, and K. Chon. 2009. A statistical approach for accurate detection of atrial fibrillation and flutter. Computers in Cardiology, 2009, IEEE, 137–140. Download
 Luca Faes, Ki H. Chon, and Giandomenico Nollo. 2009. A method for the time-varying nonlinear prediction of complex nonstationary biomedical signals. IEEE transactions on biomedical engineering 56, 2: 205–209. Download
 Luca Faes, He Zhao, Ki H. Chon, and Giandomenico Nollo. 2009. Time-varying surrogate data to assess nonlinearity in nonstationary time series: application to heart rate variability. IEEE transactions on biomedical engineering 56, 3: 685–695. Download
 Lilianne R. Mujica-Parodi, Mayuresh Korgaonkar, Bosky Ravindranath, et al. 2009. Limbic dysregulation is associated with lowered heart rate variability and increased trait anxiety in healthy adults. Human brain mapping 30, 1: 47–58. Download
 Cg Scully, Luca Faes, Giandomenico Nollo, and Kh Chon. 2009. Evaluation of the automatic-selection method for the threshold r for approximate entropy. 166–169.
 Kin L. Siu, Jaemok M. Ahn, and Ki H. Chon. 2009. Electrohydraulic pump-driven closed-loop blood pressure-regulatory system. American Journal of Physiology-Renal Physiology 296, 6: F1530–F1536.
 Kin L. Siu and Ki H. Chon. 2009. On the efficacy of the combined use of the cross-bicoherence with surrogate data technique to statistically quantify the presence of nonlinear interactions. Annals of biomedical engineering 37, 9: 1839–1848. Download
 Kin L. Siu, Biin Sung, William A. Cupples, L. C. Moore, and Ki H. Chon. 2009. Detection of low-frequency oscillations in renal blood flow. American Journal of Physiology-Renal Physiology 297, 1: F155–F162. Download
 Kin Lung Siu, Jae M. Ahn, and Ki H. Chon. 2009. Blood pressure regulatory system based on an automatic feedback controller. Federation of American Societies for Experimental Biology.
 K. H. Chon and K. Yana. 2010. Biosignal Interpretation Conference 2009. Methods of Information in Medicine 49, 5: 433–434.