Citation

Saltzman LE, Levenson A, Smith JC. MMWR CDC Surveill. Summ. 1988; 37(1): 61-68.

Affiliation

Epidemiology Branch, Center for Environmental Health and Injury Control.

Copyright

(Copyright © 1988, U.S. Centers for Disease Control and Prevention)

DOI

unavailable

PMID

3127688

Abstract

unavailable.