Sickle cell avascular necrosis: Prevalence and clinical profiles in a tertiary hospital northwestern Nigeria. Annals of African Medical Research, [S. l.], v. 3, n. 1, 2020. DOI: 10.4081/aamr.2020.114. Disponível em: https://africa.pagepress.net/aamr/article/view/421. Acesso em: 19 jan. 2026.