Prevalence and associated clinical features of cardiac murmurs among primary school children in Calabar, Nigeria. Annals of Clinical and Biomedical Research, [S. l.], v. 6, n. 1, 2025. DOI: 10.4081/acbr.2025.529. Disponível em: https://africa.pagepress.net/acbr/article/view/529. Acesso em: 19 jan. 2026.