Citation

Evid. Based Healthc. Public Health 2005; 9(6): 383-388.

Copyright

(Copyright © 2005, Elsevier Publishing)

DOI

10.1016/j.ehbc.2005.09.009

PMID

unavailable

Abstract

This article has been retracted at the request of the Author Please see http://www.elsevier.com/locate/withdrawalpolicy.
Reason: The author of this review has requested that the Editor withdraw it because it: (i) omits relevant studies, (ii) contains inaccuracies in the tabulated data. The Editor has reviewed these errors and omissions and has agreed that the paper be withdrawn.