00479nas a2200157   4500000000100000008004100001260002200042100001700064700001600081700001700097700001700114700001200131700001300143245015800156300000700314       2014                            d  aSao Paulo, Brazil1 aMichaleff Z.1 aHenschke N.1 aBroderick C.1 aKamper Steve1 aEvans R1 aMaher C.00aLow-back pain in children and adolescents: a systematic review and meta-analysis evaluating the effectiveness of conservative interventions [proceedings]  a77