Authors: F M Kovacs; V Abraira; F Pozo; D G Kleinbaum; J Beltrán; I Mateo; C Pérez de Ayala; A Peña; A Zea; M González-Lanza; L Morillas Journal: Spine (Phila Pa 1976) Date: 1997-04-01 Impact factor: 3.468
Authors: C Y Hsieh; C Z Hong; A H Adams; K J Platt; C D Danielson; F K Hoehler; J S Tobis Journal: Arch Phys Med Rehabil Date: 2000-03 Impact factor: 3.966