AHMAD, N. Obstetric anesthesia: Spinal Sub-arachnoid Blockade. Bangladesh Journal of Obstetrics & Gynaecology, [S. l.], v. 23, n. 1, p. 1–2, 2009. DOI: 10.3329/bjog.v23i1.3048. Disponível em: https://www.banglajol.info/index.php/BJOG/article/view/3048. Acesso em: 5 may. 2024.