SHYAM, R.; CHAUDHARY, A. K.; SINGH, P. K.; JAIN, G.; SINGH, D.; CHANDRA, G.; BHATIA, V. K. Effect of epidural volume extension with colloid on dose requirement for intrathecal spinal block: a double blind prospective study. International Journal of Research in Medical Sciences, [S. l.], v. 4, n. 12, p. 5283–5287, 2016. DOI: 10.18203/2320-6012.ijrms20164195. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/38. Acesso em: 14 oct. 2025.