Sex- and Age-Related Differences in Electrocardiographic Parameters of Healthy Black Adolescents in Ido/ Osi Local Government Area, Ekiti State, Nigeria. NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 53, n. 1, p. 62–79, 2026. DOI: 10.63270/njp.v53i1.2000049. Disponível em: https://www.njpaediatrics.com/index.php/njp/article/view/1314.. Acesso em: 10 may. 2026.