Citation

Orton S, Umble K, Davis MV, Porter JE. Public Health Rep. (1974) 2002; 117(6): 596-598.

Affiliation

The North Carolina Institute for Public Health, School of Public Health, University of North Carolina at Chapel Hill, USA.

Copyright

(Copyright © 2002, Association of Schools of Public Health)

DOI

unavailable

PMID

12576540

PMCID

PMC1497493

Abstract

[Abstract unavailable]

Language: en