00454nas a2200157   4500000000100000008004100001100001400042700001700056700001900073700001500092700001300107245015000120300001300270490000700283050000600290       2009                            d1 aHodges P.1 aLatimer Jane1 aCosta Leonardo1 aShirley D.1 aMaher C.00aAn investigation of the reproducibility of ultrasound measures of abdominal muscle activation in patients with chronic non-specific low back pain  a1059-65.0 v18  aY