«Adherence of pregnant women from three Basic Health Units in a city in southern Tocantins to the use of folic acid and ferrous sulfate». Revista Eletrônica Acervo Saúde 15, no. 7 (julio 19, 2022): e10692. Accedido noviembre 3, 2026. https://acervomais.com.br/saude/article/view/10692.