Geographical Variation and Risk of Breast Cancer in Relation to ABO Blood Group System. International Journal of Biomedical Research, [S. l.], v. 7, n. 7, p. 482–489, 2016. DOI: 10.7439/ijbr.v7i7.3465. Disponível em: https://www.ssjournals.co.in/index.php/ijbr/article/view/3465. Acesso em: 19 mar. 2026.