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musculus erector spinae (ART Vancouver); erector spinae (The erector spinae or spinal erectors is a set of muscles that straighten and rotate the back.  wikipedia.org ART Vancouver) | |||
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| musculus erector spinae (ART Vancouver); erector spinae (The erector spinae or spinal erectors is a set of muscles that straighten and rotate the back. wikipedia.org ART Vancouver) | |||