Obstetric characteristics of pregnancies in women 35 years old or more, according brazilian regions. Research, Society and Development, [S. l.], v. 11, n. 1, p. e57611125334, 2022. DOI: 10.33448/rsd-v11i1.25334. Disponível em: https://rsdjournal.org/rsd/article/view/25334. Acesso em: 5 dec. 2025.