PT - JOURNAL ARTICLE AU - Barna, Mark TI - New code serves as ethical guidance for public health: Revised code first in US since 2002 DP - 2020 Jan 01 TA - The Nation's Health PG - 1--20 VI - 49 IP - 10 4099 - http://www.thenationshealth.org/content/49/10/1.3.short 4100 - http://www.thenationshealth.org/content/49/10/1.3.full SO - Nations Health2020 Jan 01; 49