LESTARI, Sri; SARI, Dina Keumala; FUJIATI, IstiIlmiati; MARTINA, Sake Juli; NASUTION, Nur Hidayah. Haemoglobin Levels of Adolescent Girls Aged 11-19 Years in North Sumatera are Correlated with Socio-Economic Status and Menstrual Cycle Duration. Pakistan Journal of Nutrition, Pakistan, v. 19, n. 3, p. 122–126, 2020. DOI: 10.3923/pjn.2020.122.126. Disponível em: https://pjnonline.org/pjn/article/view/2839. Acesso em: 6 sep. 2025.