RAJIA, R. Pregnancy and Preterm Birth: A Systematic Review of Risk Factors and Prevention. Advances in Healthcare Research, [S. l.], v. 2, n. 2, p. 88–102, 2024. DOI: 10.60079/ahr.v2i2.337. Disponível em: http://advancesinresearch.id/index.php/AHR/article/view/337. Acesso em: 26 oct. 2025.