NO AUTHOR LISTED. Communicable Diseases Intelligence volume 5 issue 12 - 19 June 1981 - whole issue. Communicable Diseases Intelligence, [S. l.], v. 5, p. 1–12, 1981. Disponível em: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3174. Acesso em: 18 apr. 2026.