Expired Air Carbon Monoxide Levels as a Marker of Passive Smoking In Pregnant Women. International Journal of Physiology, [S. l.], v. 8, n. 3, p. 6–11, 2020. DOI: 10.37506/ijop.v8i3.1321. Disponível em: https://ijop.net/index.php/ijop/article/view/1321. Acesso em: 13 jun. 2026.