Intramuscular oxygen-ozone therapy in the treatment of acute back pain with lumbar disc herniation: a multicenter, randomized, double-blind, clinical trial of active and simulated lumbar paravertebral injection. - Paoloni M; Di Sante L; Cacchio A; Apuzzo D; Marotta S; Razzano M; Franzini M; Santilli V (Spine (03622436), 2009)