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. 2015 May 21;226(6):542–548. doi: 10.1111/joa.12309

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© 2015 The Authors. Journal of Anatomy published by John Wiley & Sons Ltd on behalf of Anatomical Society.

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Fig 1 — Immunofluorescence micrographs of three human lumbrical muscle spindles in the equatorial region double-stained for demonstration of laminin (red) and NPY (green). (A) Longitudinal section where specific labeling for NPY (arrow) appears on the surfaces of a nuclear chain fiber (CF). The capsule (C) is stained with laminin (red) and the nuclear bag fiber (BF) is filled with nuclei labeled blue with DAPI. (B and C) Cross-sections showing specific staining (arrow, green) on the surface of a bag fiber. Scale bar: 50 μm.