00514nas a2200157   4500000000100000008004100001100001300042700001200055700001600067700001600083700001300099700002100112245015900133250001500292020004900307       2014                            d1 aPinto R.1 aKent P.1 aFerreira P.1 aKongsted A.1 aMaher C.1 aFerreira Manuela00aSelf-reported moderate-to-vigorous leisure time physical activity predicts less pain and disability over 12 months in chronic and persistent low back pain  a2014/03/01  a1532-2149 (Electronic) - 1090-3801 (Linking)