No authors listed. Communicable Diseases Intelligence volume 17 issue 17 - 23 August 1993 - whole issue. Commun Dis Intell (2018) [Internet]. 1993 Aug. 23 [cited 2026 Apr. 21];17:374-92. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2864