00379nas a2200133 4500000000100000008004100001260003100042100001700073700001600090700001300106245011300119300000700232050000600239 2006 d aAmsterdam, The Netherlands1 aRefshauge K.1 aHenschke N.1 aMaher C.00aSystematic reviews of clinical features used for diagnosing serious pathology in patients with low back pain a73 aN