No author listed. Communicable Diseases Intelligence volume 4 issue 20 - 10 October 1980 - whole issue. Commun Dis Intell (2018) [Internet]. 1980 Oct. 10 [cited 2026 Apr. 15];4:1-19. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3208