NO AUTHOR LISTED. Communicable Diseases Intelligence volume 13 issue 9 - 8 May 1989 - whole issue. Communicable Diseases Intelligence, [S. l.], v. 13, p. 1–19, 1989. Disponível em: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2969. Acesso em: 5 apr. 2026.