Between the scapulae.
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in·ter·scap·u·lar .int-ər-'skap-yə-lər adj of, relating to, situated in, or occurring in the region between the scapulae <\interscapular pain>
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in·ter·scap·u·lar (in″tər-skapґu lər) between the scapulae.Medical dictionary. 2011.