PREETI SAHU; JITENDRA AGRAWAL; SOURABH SHRIVASTAVA; DILIP KOTHARI. A Comparative Study To Evaluate The Efficacy of Duloxetine In Different Doses For Postoperative Pain Relief In Patients Undergoing Lumbar Spine Surgery - A Randomised Double Blind Controlled Study. International Journal of Health and Clinical Research, [S. l.], v. 4, n. 17, p. 241–244, 2021. Disponível em: https://ijhcr.com/index.php/ijhcr/article/view/2819. Acesso em: 6 feb. 2026.