Family background and age at menarche among secondary schoolgirls in Nigeria. Journal of Experimental and Clinical Anatomy, [S. l.], v. 16, n. 2, p. 77–82, 2017. DOI: 10.4103/jeca.jeca_39_16. Disponível em: https://jecajournal.com/index.php/home/article/view/78.. Acesso em: 16 jun. 2025.