No author listed. Communicable Diseases Intelligence volume 5 issue 16 - 14 August 1981 - whole issue. Commun Dis Intell (2018) [Internet]. 1981 Aug. 14 [cited 2026 Apr. 15];5:1-21. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3178