Media type: E-Article Title: Tumor necrosis factor-α levels correlate with postoperative pain severity in lumbar disc hernia patients: Opposite clinical effects between tumor necrosis factor receptor 1 and 2 Contributor: Andrade, Pablo; Visser-Vandewalle, Veerle; Philippens, Marjan; Daemen, Marc A.; Steinbusch, Harry W.M.; Buurman, Wim A.; Hoogland, Govert imprint: Ovid Technologies (Wolters Kluwer Health), 2011 Published in: Pain Language: English DOI: 10.1016/j.pain.2011.08.012 ISSN: 0304-3959 Origination: Footnote: