RT Journal Article SR Electronic T1 Richard Clover, chair of the National Board of Public Health Examiners: Credentialing shows ‘commitment:’ Professionalizing the field of public health via certification JF The Nation's Health JO Nations Health FD American Public Health Association SP 6 OP 6 VO 42 IS 2 YR 2012 UL http://www.thenationshealth.org/content/42/2/6.abstract AB