No authors listed. Communicable Diseases Intelligence volume 17 issue 7 - 5 April 1993 - whole issue. Commun Dis Intell (2018) [Internet]. 1993 Apr. 5 [cited 2026 Apr. 24];17:134-5. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2854