00366nas a2200133 4500000000100000008004100001100001700042700001600059700001300075245012000088300001100208490000700219050000600226 2008 d1 aRefshauge K.1 aHenschke N.1 aMaher C.00aA systematic review identifies five “red flags” to screen for vertebral fracture in patients with low back pain a110-8.0 v61 aY