Authors: G W Omlor; H Bertram; K Kleinschmidt; J Fischer; K Brohm; T Guehring; M Anton; Wiltrud Richter Journal: Eur Spine J Date: 2009-12-29 Impact factor: 3.134
Authors: Johannes Leendert Bron; Marco N Helder; Hans-Jorg Meisel; Barend J Van Royen; Theodoor H Smit Journal: Eur Spine J Date: 2008-12-23 Impact factor: 3.134