No author listed. Communicable Diseases Intelligence volume 13 issue 15 - 31 July 1989 - whole issue. Commun Dis Intell (2018) [Internet]. 1989 Jul. 31 [cited 2026 Apr. 9];13:1-15. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2976