<style face="normal" font="default" size="100%">Behavioural treatment for chronic low-back pain: an updated Cochrane systematic review</style>

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3<style face="normal" font="default" size="100%">Behavioural treatment for chronic low-back pain: an updated Cochrane systematic review</style><style face="normal" font="default" size="100%">Behavioural treatment for chronic low-back pain: an updated Cochrane systematic review</style>