Park, S. K., O’Neill, M. S., Vokonas, P. S., Sparrow, D., & Schwartz, J. (2005). Effects of Air Pollution on Heart Rate Variability: The VA Normative Aging Study. National Institue of Environmental Health Sciences.

Park, Sung Kyun, Marie S. O’Neill, Pantel S. Vokonas, David Sparrow, και Joel Schwartz. Effects of Air Pollution On Heart Rate Variability: The VA Normative Aging Study. National Institue of Environmental Health Sciences, 2005.

Park, Sung Kyun, et al. Effects of Air Pollution On Heart Rate Variability: The VA Normative Aging Study. National Institue of Environmental Health Sciences, 2005.