Kieser DC, Cawley DT, Fujishiro , Tavolaro C, Mazas S, Boissiere , Obeid I, Pointillart V, Vital JM, Gille O
Kieser DC, Boissiere L, Bourghli A, Hayashi K, Cawley D, Yilgor C, Alanay A, Acaroglu E, Kleinstueck F, Pizones J, Pellise F, Perez-Grueso FJS, Obeid I, on behalf of the European Spine Study Group