No author listed. Communicable Diseases Intelligence volume 14 issue 18 - 10 September 1990 - whole issue. Commun Dis Intell (2018) [Internet]. 1990 Sep. 10 [cited 2026 Apr. 11];14:1-19. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2951