Citation

Johnson KG, Donnelly JH, Scheble R, Wine RL, Weitman M. Am. J. Public Health 1971; 61(12): 2418-2432.

Copyright

(Copyright © 1971, American Public Health Association)

DOI

unavailable

PMID

4399650

PMCID

PMC1530048

Abstract

[Abstract unavailable]

Language: en