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Bulletin of the World Health Organization
Print version ISSN 0042-9686
Bull World Health Organ vol.85 n.10 Genebra Oct. 2007
http://dx.doi.org/10.1590/S0042-96862007001000021
Corrigendum
In Vol. 85, issue number 8, 2007, page 571, reference 6 should read "unpublished data".
