Authors DOI: https://doi.org/10.1590/S0034-89101970000100017 Downloads PDF (Portuguese) Published 1970-06-01 Issue Vol. 4 No. 1 (1970) Section Abstracts How to Cite (1970). Revista De Saúde Pública, 4(1), 107-108. https://doi.org/10.1590/S0034-89101970000100017 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver AMA Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX