6Amatachaya S,Wannapakhe J,Arrayawichanon P, et al.Functional abilities,incidences of complications and falls of patients with spinal cord injury 6 months after discharge[J].Spinal Cord,2011, 49(4):520-524.
7Pearson AM,Weinstein JN.Pearls and Pitfalls in Evidence Based Medicine: What We've Learned About Outcomes Research in Spine Surgery[J].Semin Spine Surg,2009,21(4):264-267.
