Authors: W Lehmann; A Ushmaev; A Ruecker; J Nuechtern; L Grossterlinden; P G Begemann; T Baeumer; J M Rueger; D Briem Journal: Eur Spine J Date: 2008-04-04 Impact factor: 3.134
Authors: Thomas Andersen; Finn B Christensen; Bent Niedermann; Peter Helmig; Kristian Høy; Ebbe S Hansen; Cody Bünger Journal: Acta Orthop Date: 2009-08 Impact factor: 3.717