No authors listed. Communicable Diseases Intelligence volume 17 issue 19 - 20 September 1993 - whole issue. Commun Dis Intell (2018) [Internet]. 1993 Sep. 20 [cited 2026 Apr. 7];17:422-43. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2866