GANDHI, P.; AGRAWAL, M.; AGRAWAL, B.; BEHL, S. Comparative study of clinical efficacy and safety of intrathecal isobaric ropivacaine 0.75% with fentanyl versus isobaric ropivacaine 0.75% alone for caesarean. International Journal of Scientific Reports, [S. l.], v. 7, n. 1, p. 1–5, 2020. DOI: 10.18203/issn.2454-2156.IntJSciRep20205451. Disponível em: https://www.sci-rep.com/index.php/scirep/article/view/847. Acesso em: 22 sep. 2025.