“Better Health Through Equity,” American Public Health Association, 2015 report

“American’s Health Rankings,” partnership between American Public Health Association and United Health Foundation, ongoing state ranking analysis

American Public Health Association, policy statements

Robert Wood Johnson Foundation, city maps collection showing life expectancy across metropolitan areas

Asthma rates by state and other information, from U.S. Centers for Disease Control and Prevention

Asthma emergency room visits, by ZIP code for the state of California