Wilhelm, M., Meng, Y., Rull, R. P., English, P., Balmes, J., & Ritz, B. (2008). Environmental Public Health Tracking of Childhood Asthma Using California Health Interview Survey, Traffic, and Outdoor Air Pollution Data. National Institute of Environmental Health Sciences.

Wilhelm, Michelle, Ying-Ying Meng, Rudolph P. Rull, Paul English, John Balmes, και Beate Ritz. Environmental Public Health Tracking of Childhood Asthma Using California Health Interview Survey, Traffic, and Outdoor Air Pollution Data. National Institute of Environmental Health Sciences, 2008.

Wilhelm, Michelle, et al. Environmental Public Health Tracking of Childhood Asthma Using California Health Interview Survey, Traffic, and Outdoor Air Pollution Data. National Institute of Environmental Health Sciences, 2008.