No author listed. Communicable Diseases Intelligence volume 5 issue 8 - 24 April 1981 - whole issue. Commun Dis Intell (2018) [Internet]. 1981 Apr. 24 [cited 2026 Apr. 18];5:1-15. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3170