European Spine Journal
European Spine Journal > 2012 > 21 > 1 > 69-74
European Spine Journal > 2012 > 21 > 3 > 530-536
European Spine Journal > 2012 > 21 > 5 > 971-979
European Spine Journal > 2012 > 21 > 5 > 887-896
European Spine Journal > 2012 > 21 > 12 > 2418-2424