F. Dominici, R. D. Peng, M. L. Bell, L. Pham, A. Mc-Dermott, S. L. Zeger and J. M. Samet, “Fine Particulate Air Pollution and Hospital Admission for Cardiovascular and Respiratory Diseases,” JAMA, Vol. 295, No. 10, 2006, pp. 1127-1134. http://dx.doi.org/10.1001/jama.295.10.1127
 K. A. Miller, D. S. Siscovick, L. Sheppard, K. Shepherd, J. H. Sullivan, G.L. Anderson and J. D. Kaufman, “Long-Term Exposure to Air Pollution and Incidence of Cardiovascular Events in Women,” New England Journal of Medicine, Vol. 356, No. 5, 2007, pp. 447-458. http://dx.doi.org/10.1056/NEJMoa 054409
 R. J. Delfino, S. Brummel, J. Wu, H. Stern, B. Ostro, M. Lipsett, A. Winer, D. H. Street, L. Zhang, T. Tjoa and D. L. Gillen, “The Relationship of Respiratory and Cardiovascular Hospital Admissions to the Southern California Wildfires of 2003,” Occupational & Environmental Medicine, Vol. 66, No. 3, 2009, pp. 189-197. http://dx.doi.org/10.1136/oem.2008.041376
 J. Schwartz, D. Dockery and L. Neas, “Is Daily Mortality Associated Specifically with Fine Particles?” Journal of the Air & Waste Management Association, Vol. 46, No. 10, 1997, pp. 927-939. http://dx.doi.org/10.1080/10473289.1996.10467528
 S. M. Bernard, J. M. Samet, A. Grambsch, K. L. Ebi and I. Romieu, “The Potential Impacts of Climate Variability and Change on Air Pollution Related Health Effects in the United States,” Environmental Health Perspectives, Vol. 109, Suppl. 2, 2001, pp. 199-209.
 A. D. Kappos, P. Bruckmann, T. Eikmann, N. Englert, U. Heinrich, P. H?ppe, E. Koch, G. H. M. Krause, W. G. Kreyling, K. Rauchfuss, P. Rombout, V. Schulz-Klemp, W. R. Thiel and H. E. Wichmann, “Health Effects of Particles in the Ambient Air,” International Journal of Hygiene and Environmental Health, Vol. 207, No. 4, 2004, pp. 399-407.