No author listed. Communicable Diseases Intelligence volume 5 issue 3 - 13 February 1981 - whole issue. Commun Dis Intell (2018) [Internet]. 1981 Feb. 13 [cited 2026 Apr. 17];5:1-18. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3164