RT Journal Article SR Electronic T1 New code serves as ethical guidance for public health: Revised code first in US since 2002 JF The Nation's Health JO Nations Health FD American Public Health Association SP 1 OP 20 VO 49 IS 10 A1 Barna, Mark YR 2020 UL http://www.thenationshealth.org/content/49/10/1.3.abstract AB