Exposure to traffic-related particles and endotoxin during infancy is associated with wheezing at age 3 years.

MLA

Ryan, Patrick H., et al. “Exposure to Traffic-Related Particles and Endotoxin during Infancy Is Associated with Wheezing at Age 3 Years.” American Journal of Respiratory and Critical Care Medicine, vol. 180, no. 11, Dec. 2009, pp. 1068–75. EBSCOhost, https://doi.org/10.1164/rccm.200808-1307OC.

APA

Ryan, P. H., Bernstein, D. I., Lockey, J., Reponen, T., Levin, L., Grinshpun, S., Villareal, M., Hershey, G. K. K., Burkle, J., & LeMasters, G. (2009). Exposure to traffic-related particles and endotoxin during infancy is associated with wheezing at age 3 years. American Journal of Respiratory and Critical Care Medicine, 180(11), 1068–1075. https://doi.org/10.1164/rccm.200808-1307OC

Chicago

Ryan, Patrick H, David I Bernstein, James Lockey, Tiina Reponen, Linda Levin, Sergey Grinshpun, Manuel Villareal, Gurjit K Khurana Hershey, Jeff Burkle, and Grace LeMasters. 2009. “Exposure to Traffic-Related Particles and Endotoxin during Infancy Is Associated with Wheezing at Age 3 Years.” American Journal of Respiratory and Critical Care Medicine 180 (11): 1068–75. doi:10.1164/rccm.200808-1307OC.