Comparison of bupivacaine and levobupivacaine for treatment of post-thoracotomy pain through thoracic paravertebral block Journal title: The European Research Journal Authors: Sener Kaya, Elif Basagan Mogol, Fatma Nur Kaya, Ahmet Sami Bayram, Gurkan Turker, Canan Yilmaz, Dery... Subject(s):