ABO blood group status and Von Willebrand Factor antigen levels in a cohort of 100 blood donors in an African population. International Journal of Biomedical Research, [S. l.], v. 7, n. 4, p. 219–222, 2016. DOI: 10.7439/ijbr.v7i4.3147. Disponível em: https://ssjournals.co.in/index.php/ijbr/article/view/3147. Acesso em: 31 mar. 2026.