Additional file 1.
Movie: 3-dimensionally view of staining with CGRP (green) and IB4 (red) in rat C1. The two markers are most often not expressed in the same fibers. Occasionally the two markers co-localize in fibers (yellow).
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Eftekhari and Edvinsson BMC Neuroscience 2011 12:112 doi:10.1186/1471-2202-12-112