SHAIK, R.; LATHA, S.; RAMA RAO, M.; PALETI, S. Efficacy of 0.5% levobupivacaine with clonidine 30 μg versus 0.5% levobupivacaine with 150 μg buprenorphine for USG guided interscalene brachial plexus block for shoulder, upper and middle humerus surgeries: a prospective randomized double blinded comparative study. International Journal of Research in Medical Sciences, [S. l.], v. 12, n. 5, p. 1542–1548, 2024. DOI: 10.18203/2320-6012.ijrms20241239. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/13286. Acesso em: 13 oct. 2025.