00385nas a2200157   4500000000100000008004100001260002000042100001400062700001400076700001700090700002000107700001500127700001300142245006500155300000700220       2012                            d  aOdense, Denmark1 aHodges P.1 aMacedo L.1 aLatimer Jane1 aW. Rodgers Todd1 aMcAuley J.1 aMaher C.00aThe fluctuating nature of low back pain: a cluster analysis.  a58