1. Inner-city asthma: the epidemiology of an emerging US public health concern;Weiss;Chest,1992
2. Asthma in the inner city: the perspective of the National Institute of Allergy and Infectious Diseases;Togias;J Allergy Clin Immunol,2010
3. Neighborhood poverty, urban residence, race/ethnicity, and asthma: rethinking the inner-city asthma epidemic;Keet;J Allergy Clin Immunol,2015
4. NCHS Urban-Rural Classification Scheme for Counties. Vital Health Stat 2 2014;Ingram,2013
5. ZIP/ZCTA master dataset vintage 2014. 2014. Available at: http://mcdc.missouri.edu/data/georef/zcta_master.Metadata.html. Accessed November 1, 2015.