Reviewer’s comment concerning “Continuing conservative care versus cross-over to radiofrequency kyphoplasty: a comparative effectiveness study on the treatment of vertebral body fractures” (doi:10.1007/s00586-012-2148-8 by R. Bornemann, M. Hanna, K. Kabir, H. Goost, D. C. Wirtz, R. Pflugmacher) | Publicación