Article Information
vol. 29 no. 5 1069-1070
PubMed
Published By
Print ISSN
Online ISSN
History
- Published online April 30, 2007.
Copyright & Usage
© ERS Journals Ltd
Author Information
- S. S. Cunha and
- P. J. Newcombe
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Bahia, Brazil, London, School of Hygiene and Tropical Medicine, London, UK.