Authors DOI: https://doi.org/10.1590/S0034-89101974000200010 Downloads PDF (Portuguese) Published 1974-06-01 Issue Vol. 8 No. 2 (1974) Section Abstracts How to Cite (1974). Revista De Saúde Pública, 8(2), 245-246. https://doi.org/10.1590/S0034-89101974000200010 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver AMA Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX