Beirami, F., Khoshfetrat, M., Khosravi, H., & Keykha, A. (2018). Comparing the duration of spinal anesthesia with bupivacaine between drug-dependent and non-dependent patients. Biomedical Research and Therapy, 5(10), 2721-2725. https://doi.org/10.15419/bmrat.v5i10.486