Answer to the letter to the editor of Monica del-Rio-Vellosillo et al. entitled "a comparison of spinal anesthesia characteristics following intrathecal bupivacaine or levobupivacaine in lumbar disc surgery" by Sahin AS, Türker G, Bekar A, Bilgin H,

Answer to the letter to the editor of Monica del-Rio-Vellosillo et al. entitled "a comparison of spinal anesthesia characteristics following intrathecal bupivacaine or levobupivacaine in lumbar disc surgery" by Sahin AS, Türker G, Bekar A, Bilgin H,