PT - JOURNAL ARTICLE ED - , TI - EPA proposes greenhouse gases a threat to human health, welfare DP - 2009 Jun 01 TA - The Nation's Health PG - 10--10 VI - 39 IP - 5 4099 - http://www.thenationshealth.org/content/39/5/10.1.short 4100 - http://www.thenationshealth.org/content/39/5/10.1.full SO - Nations Health2009 Jun 01; 39