PT - JOURNAL ARTICLE AU - Kim Krisberg TI - Secondhand smoke exposure reduced, but more work remains DP - 2015 Apr 01 TA - The Nation's Health PG - 6--6 VI - 45 IP - 3 4099 - http://www.thenationshealth.org/content/45/3/6.2.short 4100 - http://www.thenationshealth.org/content/45/3/6.2.full SO - Nations Health2015 Apr 01; 45