https://www.abc.net.au/news/science/2022-03-21/blood-group-type-australia-donation-ethnicity-diversity-genetics/100916578?utm_campaign=abc_news_web&utm_content=link&utm_medium=content_shared&utm_source=abc_news_web Follow this link to details of the study and the results and a brief outline of the possible implications of these changes and the relatively unchanging profile of the pool of blood donors in Australia. Fiona Davies Twenty- three Units of Blood,(detail) 2006, metal and found objects size variable