NO AUTHOR LISTED. Communicable Diseases Intelligence volume 4 issue 21 - 24 October 1980 - whole issue. Communicable Diseases Intelligence, [S. l.], v. 4, p. 1–14, 1980. Disponível em: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3209. Acesso em: 5 apr. 2026.