PT - JOURNAL ARTICLE ED - , TI - EPA submits proposal to reduce shipping pollution at U.S. ports DP - 2009 Jun 01 TA - The Nation's Health PG - 9--9 VI - 39 IP - 5 4099 - http://www.thenationshealth.org/content/39/5/9.2.short 4100 - http://www.thenationshealth.org/content/39/5/9.2.full SO - Nations Health2009 Jun 01; 39