No author listed. Communicable Diseases Intelligence volume 13 issue 10 - 22 May 1989 - whole issue. Commun Dis Intell (2018) [Internet]. 1989 May 22 [cited 2026 Apr. 23];13:1-20. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2970