NO AUTHOR LISTED. Communicable Diseases Intelligence volume 15 issue 13 - 24 June 1991 - whole issue. Communicable Diseases Intelligence, [S. l.], v. 15, p. 207–224, 1991. Disponível em: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2920. Acesso em: 5 apr. 2026.